2. The Amazon rainforest is currently being burned down at an alarming rate. According to the

New York Times, most of the deforestation is being illegally caused by ranchers. Cattle is a $6

Billion industry in Brazil. In 2009 an agreement between the largest beef packing plants and

Brazil was reached to stop the deforestation. The packing plants agreed to only purchase cattle

from established, legal farms. The hope was that deforestation would stop. Recently many

countries began putting sanctions or bans on Brazilian beef. Which of the following statements

best explains why the rest of the world want to stop the deforestation of the Amazon?

3. Which of the following would be an example of sustainable land use?

The graph above shows the percent change in price of various types of food from 1985 to

2014. All of the bars below zero represent a fall in price, while the bars above zero represent

price increase. How does the information in the graph support the political cartoon?

The above graph shows the prescription rates of antidepressants and green space in the

Netherlands. Green space is areas of trees or other vegetation set aside for recreational or

aesthetic use. Which statement is best supported by the graph?

Prenatal care consists of regular check ups and vitamins given throughout a pregnancy.

Studies have shown that this type of care can significantly reduce miscarriages and birth

complications. While insurance covers most of the costs, those without insurance can find this

care expensive. What can you infer about the rates of prenatal care and poverty?

Many large bodies of water have been developing “garbage patches” in the calm centers of

their waters. One of the largest is the “Great Pacific Garbage Patch” which is twice the size of

Texas. Above is a sample of items found in this patch and how long it would take them to

naturally decompose. Four students are trying to come up with a plan to decrease the amount

of trash finding its way to the patch. Here are their ideas.

1.Sara- We should start banning waxed milk

cartons and switch to plastic

2.Devon- We should burn all of our trash to keep it

from ending up in the ocean

3.Mike- We should stop using aluminum cans and

switch to a new type of container

4.Tina- We should start finding ways to use less

plastic so we throw less away

Which students’ idea would have the greatest positive impact the environment while reducing

the amount of trash going to the ocean?

A new soda company is looking to market to people trying to reduce the amount of waste they

make. The creators of the soda are looking to design the packaging to have the least impact on

the environment once you finish drinking it. Which strategy would make the product the most eco friendly?

The above poster shows a potential future use for waste. Using this process would best

prevent which part of the waste cycle?

D. Producing too much waste

Eutrophication is when water loses its oxygen do to an algae bloom that dies. Algae is a

microscopic plant like organism. The algae that dies is decomposed by bacteria and that

bacteria uses all of the available oxygen in the water. An environmentalist has been sent to

investigate the above river. There have been reports that a small lake at the end of the river is

becoming eutrophic. She has 4 hypotheses about why the lake is being impacted. Which

hypothesis is best supported by the above picture?

The above chart shows the greenhouse gas emissions in 2013 based on the percentage of

total emissions different industries produce. The chart also shows the amount of different types

of greenhouse gasses by the percentage of the total emissions these gasses make up. An

agent of the Environmental Protection Agency (EPA) has been asked to advise Congress on

which part of the economy and which gas they should start regulating. Which suggestion would

make the greatest impact on the environment?

A city has put in a permit request to make a new landfill. The local government has responded

by asking for a detailed report of the local environment and how they plan to monitor it once the

landfill has been built. Why would the government feel a monitoring plan is important?

During photosynthesis, the sun’s energy is used by green plants to produce glucose, which the

plant’s then use for food. Which of the following is the energy transformation that is taking

place?

The industrial revolution led to an overuse of nonrenewable resources. Some examples of

nonrenewable resources used for energy are coal, natural gas, and petroleum. In recent

years, scientists have expressed a need for conserving Earth's resources. In Florida, for

example, solar panels are used as an alternative energy source to nonrenewable energy

sources. Solar Panels are designed to absorb the sun's rays as a source of energy.The

purpose of the panels is to change solar energy into what form of energy?

In the energy pyramid provided, chemical energy is transferred from producers to consumers.

What energy transformation occurs in the food pyramid provided in the image above?

The equation provided illustrates photosynthesis, a chemical reaction that occurs in a plant..

When a plant performs this process it uses water, carbon dioxide, and light to produce the two

products, sugar and oxygen.

Water + carbon dioxide + light ---> sugar + oxygen

Based on the law of conservation of energy, what happened to the energy as the reaction

progressed?

A.

B.

C.

D.

With regard to how energy moves, what type of system best describes putting a lid on a pot of

boiling water?

Biological organisms are open systems. Energy is exchanged between organisms and their

surroundings, as they consume energy-storing molecules and release the energy to the

environment by doing work. Which scientific law supports this energy exchange?

Processes involved in the water cycle are represented by letters in the diagram below.

In which groups are these processes correctly identified?

The diagram below shows the Nitrogen Cycle.

What is the role of Nitrates in the cycle?

Which gas is the greatest contributor to climate change?

11. Which of the following statements best describes a scientific model?

12. What is a limitation to using models for studying systems in science?

12. What is a limitation to using models for studying systems in science?

1. What is that Water Cycle process in plants where water from plants evaporates, from liquid to gas?

1. In Nitrogen Cycle, it is the process where Nitrogen is changed to ammonia NH3/ NH4+ or Nitrate NO3-

The entry of carbon (in the form of carbon dioxide) in the atmosphere marks the start of the carbon cycle. Before this, carbon dioxide goes through the process of respiration (process by which organisms release energy from their food) and combustion (process of burning). Such processes both involve the releasing carbon dioxide into the atmosphere.

1. While conduction is the transfer of heat energy by direct contact, convection is the movement of heat by actual motion of matter; radiation is the transfer of energy with the help of electromagnetic waves

Crop rotation is a strategy used by farmers where a different type of crop is grown on the same

soil every season. An example would be growing corn one season and the next season using

the same field to grow peanuts. Each type of plant requires different nutrients and returns

different nutrients to the soil. What impact can crop rotation have on the environment?

2. The Amazon rainforest is currently being burned down at an alarming rate. According to the

New York Times, most of the deforestation is being illegally caused by ranchers. Cattle is a $6

Billion industry in Brazil. In 2009 an agreement between the largest beef packing plants and

Brazil was reached to stop the deforestation. The packing plants agreed to only purchase cattle

from established, legal farms. The hope was that deforestation would stop. Recently many

countries began putting sanctions or bans on Brazilian beef. Which of the following statements

best explains why the rest of the world want to stop the deforestation of the Amazon?

3. Which of the following would be an example of sustainable land use?

The graph above shows the percent change in price of various types of food from 1985 to

2014. All of the bars below zero represent a fall in price, while the bars above zero represent

price increase. How does the information in the graph support the political cartoon?

The above graph shows the prescription rates of antidepressants and green space in the

Netherlands. Green space is areas of trees or other vegetation set aside for recreational or

aesthetic use. Which statement is best supported by the graph?

Prenatal care consists of regular check ups and vitamins given throughout a pregnancy.

Studies have shown that this type of care can significantly reduce miscarriages and birth

complications. While insurance covers most of the costs, those without insurance can find this

care expensive. What can you infer about the rates of prenatal care and poverty?

Many large bodies of water have been developing “garbage patches” in the calm centers of

their waters. One of the largest is the “Great Pacific Garbage Patch” which is twice the size of

Texas. Above is a sample of items found in this patch and how long it would take them to

naturally decompose. Four students are trying to come up with a plan to decrease the amount

of trash finding its way to the patch. Here are their ideas.

1.Sara- We should start banning waxed milk

cartons and switch to plastic

2.Devon- We should burn all of our trash to keep it

from ending up in the ocean

3.Mike- We should stop using aluminum cans and

switch to a new type of container

4.Tina- We should start finding ways to use less

plastic so we throw less away

Which students’ idea would have the greatest positive impact the environment while reducing

the amount of trash going to the ocean?

A new soda company is looking to market to people trying to reduce the amount of waste they

make. The creators of the soda are looking to design the packaging to have the least impact on

the environment once you finish drinking it. Which strategy would make the product the most eco friendly?

The above poster shows a potential future use for waste. Using this process would best

prevent which part of the waste cycle?

D. Producing too much waste

Eutrophication is when water loses its oxygen do to an algae bloom that dies. Algae is a

microscopic plant like organism. The algae that dies is decomposed by bacteria and that

bacteria uses all of the available oxygen in the water. An environmentalist has been sent to

investigate the above river. There have been reports that a small lake at the end of the river is

becoming eutrophic. She has 4 hypotheses about why the lake is being impacted. Which

hypothesis is best supported by the above picture?

The above chart shows the greenhouse gas emissions in 2013 based on the percentage of

total emissions different industries produce. The chart also shows the amount of different types

of greenhouse gasses by the percentage of the total emissions these gasses make up. An

agent of the Environmental Protection Agency (EPA) has been asked to advise Congress on

which part of the economy and which gas they should start regulating. Which suggestion would

make the greatest impact on the environment?

A city has put in a permit request to make a new landfill. The local government has responded

by asking for a detailed report of the local environment and how they plan to monitor it once the

landfill has been built. Why would the government feel a monitoring plan is important?

It is the process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession.

IT begins with no life,only bare rocks and no soil present.

It follows removal of existing biota, soil is already present. It follows after a forest fire,flooding, hurricane,etc.

It is a stable, mature community in which there is little change in the number of species.

1. What would happen in a community that is disrupted by secondary succession event, such as a forest fire?

1. Which is a biotic factor that might affect the life of a water-dwelling organism?

1. Which of the following abiotic factors could affect the stability of an ecosystem?

1. Which example best illustrates the relationship between an abiotic and biotic factors in an ecosystem?

1. The diagram below represents ecological succession, a process that occurs in nature.

Using the diagram provided, what would happen in this ecosystem after a secondary succession event?

1. The increase of certain types of gases in the atmosphere has contributed to the problem of global warming. Which item below best describes a gas?

Which information belongs in areas X and Y?

X- Plants, animals, people, organism interactions, competition

Y- Water, gases, oil, temperature

During photosynthesis, the sun’s energy is used by green plants to produce glucose, which the

plant’s then use for food. Which of the following is the energy transformation that is taking

place?

The industrial revolution led to an overuse of nonrenewable resources. Some examples of

nonrenewable resources used for energy are coal, natural gas, and petroleum. In recent

years, scientists have expressed a need for conserving Earth's resources. In Florida, for

example, solar panels are used as an alternative energy source to nonrenewable energy

sources. Solar Panels are designed to absorb the sun's rays as a source of energy.The

purpose of the panels is to change solar energy into what form of energy?

The equation provided illustrates photosynthesis, a chemical reaction that occurs in a plant..

When a plant performs this process it uses water, carbon dioxide, and light to produce the two

products, sugar and oxygen.

Water + carbon dioxide + light ---> sugar + oxygen

Based on the law of conservation of energy, what happened to the energy as the reaction

progressed?

A.

B.

C.

D.

With regard to how energy moves, what type of system best describes putting a lid on a pot of

boiling water?

Biological organisms are open systems. Energy is exchanged between organisms and their

surroundings, as they consume energy-storing molecules and release the energy to the

environment by doing work. Which scientific law supports this energy exchange?

Processes involved in the water cycle are represented by letters in the diagram below.

In which groups are these processes correctly identified?

The diagram below shows the Nitrogen Cycle.

What is the role of Nitrates in the cycle?

Which gas is the greatest contributor to climate change?

11. Which of the following statements best describes a scientific model?

12. What is a limitation to using models for studying systems in science?

1. What is that Water Cycle process in plants where water from plants evaporates, from liquid to gas?

1. In Nitrogen Cycle, it is the process where Nitrogen is changed to ammonia NH3/ NH4+ or Nitrate NO3-

The entry of carbon (in the form of carbon dioxide) in the atmosphere marks the start of the carbon cycle. Before this, carbon dioxide goes through the process of respiration (process by which organisms release energy from their food) and combustion (process of burning). Such processes both involve the releasing carbon dioxide into the atmosphere.

The entry of carbon (in the form of carbon dioxide) in the atmosphere marks the start of the carbon cycle. Before this, carbon dioxide goes through the process of respiration (process by which organisms release energy from their food) and combustion (process of burning). Such processes both involve the releasing carbon dioxide into the atmosphere.

1. While conduction is the transfer of heat energy by direct contact, convection is the movement of heat by actual motion of matter; radiation is the transfer of energy with the help of electromagnetic waves

Three subspecies of Spotted Owl are recognized in the United States. Of these, two are shown in the figure above. The Northern Spotted Owl is the darkest brown with the smallest white spots while the Mexican Spotted Owl is the smallest and lightest with the largest white spots. Speciation of these spotted owls is most likely due to which isolation mechanism?

Competition is a driving force behind natural selection. Which of these statements best

describes why competition is a constant pressure?

Although laws are in place to protect environmental marine ecosystems in the United States,

many of these laws are not global. How would untreated waste alter the biodiversity within

these regions for years to come?

Physical barriers can play a large role in the development of a new species, or speciation.

Glaciers, earthquakes, mudslides, and floods can impact a landscape and separate populations of the same species, causing them to evolve separately in a process called

speciation. How does speciation impact the biodiversity of an ecosystem?

Based on the figure, what happens to biological diversity as the rate of habitat fragmentation

increases and how would you describe this rate over time?

Extinction is a naturally occurring process where organisms that can no longer compete die off.

An extinction can have different impacts depending on the organism and the health of that

ecosystem. Based on the graph what role does biodiversity play in how much an extinction

could impact an ecosystem?

Scientific theories can change when new information is presented. Lamarck first proposed the

theory of evolution and suggested species could change in response to their environment. How

did Darwin’s theory of evolution become more widely accepted in the scientific community?

According to the theory of natural selection, why is producing a large number of offspring

essential?

Which of the following explains what environmental and physical characteristics of the finch s

led Darwin to develop his theory?

Sexual dimorphism is when males and females of the same species have drastically different

colors, sizes or looks. This is commonly seen in birds as shown in the picture. The male is

brightly colored red and the female is a much more reserved brown. These differences in color

are not camouflage and in some cases may put the individual at risk. Which process could

explain why a potentially negative trait can be passed to future generations?

The Green Ash tree is an important species for many organisms in American forests. They

provide food and shelter for birds, squirrels, raccoons, and even frogs. Recently an invasive

beetle called the emerald ash borer has been found and is having a profound impact on these

trees. Below is a graph of tree population in Wisconsin before and after the beetle was

discovered there in 2017. There is also a food web that shows one species that may be

impacted by a change in the ash tree population. Which statement best describes how this

trend of the ash tree population would impact another species?

The following are the main points of natural selection EXCEPT:

A biological ____________ is a group of interbreeding populations that is reproductively isolated from other groups.

It is the process by which populations change in response to their environment.

1. The Mississippi River Delta ecosystem is a wetland home to a large number of fish, birds, and other aquatic organisms. During the last century, this ecosystem has seen a decrease in wetland areas and species diversity due to land development, agriculture, and flooding.Conservation groups have been working to reconnect the Mississippi River with its floodplain and restore lost wetlands. Which of the following statements would result of restoring wetland

areas in this ecosystem?

When the environment has reached its human carrying capacity, which of the following

conclusions can be made?

Human activities and natural events can have a large effect on populations, biodiversity and ecosystem processes. How does the growth of the human population into rural areas affect the

environmental quality of the native ecosystem?

Based on the demographic transition model above, what stage of development would a country

be in that is experiencing a stable increase?

The graph below shows changes in human population numbers over time.

Which of the following statements would predict a consequence of these changes?

Button cell batteries are used in small portable electronic devices such as watches, cameras,

digital thermometers, calculators and toys. Although there are no federal regulations prohibiting

throwing button cell batteries in the regular garbage, they should be recycled due to the

hazardous materials contained within them. What is the best explanation for why these

batteries should be recycled?

How does the availability of fresh fruit and vegetables affect the human population?

Many factory farms dump animal waste products into neighboring streams, rivers and lakes.

How might this affect the health of the people living in these areas?

The image above is a picture of a sage plant, Salvia leucophylla. The sage plant secretes toxins that will kill off surrounding plants in a circle around it. This inhibits the growth of nearby plants. Which of the following forms of population distribution is described?

The United States depends on its forests in many ways. Forests provide environmental, social

and economic benefits to many people around the globe. They help filter drinking water, provide timber for building homes, habitats for a diverse array of plants and animals, supply oxygen, moderate temperatures and store atmospheric carbon. The health of a forest plays a role in maintaining human health. Which of the following statements supports the idea that human health benefits from a healthy forest?

Below is a diagram of an aquatic food web

Predict what would happen if all of the starfish were suddenly eliminated from this ecosystem?

The diagram below represents a food web in an ecosystem.

Using the diagram and the table above, identify the relationship between the mice and the

wheat?

ROW Role of Mice Role of Wheat

1 Producer consumer

2 Predator Host

3 Host Predator

4 Consumer Producer

The diagram below represents an energy pyramid

Which area of this energy pyramid will have the least amount of energy available for use by the

organisms in that trophic level?

Which sequence best represents the flow of energy

through an ecosystem?

When a caterpillar consumes a leaf such as in the food chain below, what percent of the leaf’s

energy is lost to the environment?

Food webs are used to depict the flow of energy through an ecosystem, as well as the

relationships that exist between organisms in an ecosystem. These food webs do not,

however, provide detailed information on the relative size of each population. Despite this fact,

which generalization can be made about a functioning terrestrial ecosystem?

The diagram shows the flow of energy in an ecosystem. One year, a disease affecting

grasshopper’s caused a widespread decline in their population. Which of the following is the

most likely consequence of this event?

The diagram shows the flow of energy in an ecosystem. One year, a disease affecting

grasshopper’s caused a widespread decline in their population. Which of the following is the

most likely consequence of this event?

Energy within an ecosystem flows from the producers to the consumers. However, a very

important group of heterotrophs are decomposers. What role do decomposers serve in an

ecosystem?

Which of the following statements would be a consequence of a natural disaster that killed off

most of the primary consumers in an ecosystem?

Which of the following statements would be a consequence of a natural disaster that killed off

most of the primary consumers in an ecosystem?

In the tropical regions of Africa, the crocodile lies with its mouth open. The plover flies into its

mouth and feeds on bits of decaying meat stuck in the crocodile’s teeth. The crocodile does not

eat the plover. Instead, he appreciates the dental work. Which term best describes the

interaction between the crocodile and plover.

Which of the following interactions between organisms would be considered a commensalism relationship?

The diagram shows light - and dark- colored beetles that live on a tree.

Which result is most likely to occur to the beetle population due to predation over time?

Parrotfish are herbivores that are found in coral reefs. To escape predation, a parrot fish will eat near a rabbitfish, which has venomous spines at the end of its pelvic fins. The rabbitfish provides protection to the parrotfish while eating. Which type of relationship does the parrotfish

and the rabbitfish have in the coral-reef environment?

The graph below shows the growth of Paramecium aurelia in the same culture dish for 14 days. In another experiment, a second species of paramecium was introduced into a culture dish with Paramecium aurelia. Which statement describes a possible result as the populations interact over the next 14 days?

The graph below shows the growth of Paramecium aurelia in the same culture dish for 14 days. In another experiment, a second species of paramecium was introduced into a culture dish with Paramecium aurelia. Which statement describes a possible result as the populations interact over the next 14 days?

15. A species of snapping turtle has a tongue that resembles a worm. The tongue is used to attract

small fish. Which best describes the interaction between the fish and the snapping turtle?

Mullet are estuarine fish that swim in schools. Estuarine fish feed on plankton and plant matter.Natural predators of mullet include spotted sea trout, sharks, pelicans and dolphins. The graph below shows how the number of mullet has changed over time in a certain area.Based on the data above, which of the following could explain the change in the mullet population from year 1 to year 5?

Bats eat insects that damage crops and mosquitoes that are vectors for disease. One million bats can eat several tons of insects per night, saving billions of dollars in pesticides yearly. Agricultural and public health scientists are concerned about the spread of white-nose syndrome (WNS). WNS is a result of a fungus that can infect cave dwelling bats. While bats hibernate during winter months, and the fungus covers the bats’ faces and wings. WNS has a

near 100% mortality rate, and 5.7 million bats have died since the discovery of the fungus in 2006. Many scientists are searching for ways to protect these bats. The relationship between this fungus and the bats can best be defined with which of the statements below?

Autotrophs can make their own food.

Heterotrophs cannot make their own food.

10% Rule of Energy Pyramid states that only 10% of energy can be passed on to the next trophic level meaning 90% of energy is being lost per trophic level.

10% Rule of Energy Pyramid states that only 10% of energy can be passed on to the next trophic level meaning 90% of energy is being lost per trophic level.

1. Daily choices that humans make affect the environment. Sometimes, our lifestyles can harm

the environment. For example, fossil fuel power plants generate waste in the form of air

emissions, thermal releases and climatic impacts. Which of the following statements would be

most helpful in protecting the environment from fossil fuel power plants?

Offshore drilling is a common practice for obtaining oil for human use. Oil can be used for

transportation fuels, production of plastic, and making electricity.Which of the following

statements best describes an environmental concern with using offshore drilling to obtain oil?

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy

content and since the 1880s has been widely used to generate electricity. Steel and cement

industries use coal as a fuel for extraction of iron from iron ore and for cement production.

Predict a negative effect that could occur over the next 50 years if coal mining increased.

Scientists are currently researching new ways to obtain energy from our natural, renewable

resources. Which statement gives the best explanation of the benefits of renewable resources.

Oil is one of the most common non-renewable resources on Earth. Human consumption of oil

is happening at a rate that may cause concern. Which of the following would be evidence that

humans have reached peak oil consumption?

Salmon consumption worldwide is three times higher than it was in 1980. What was once a

luxury food is now among the most popular fish species consumed in the U.S., Europe, and

Japan. How did humans adjust to the high demand for this limited natural resource and allow

the salmon populations to rebuild and stabilize?

The chart below shows energy consumption sources in the United States.

Which conclusion can be made regarding both the distribution of energy consumption in the

United States and the impact this energy consumption has on the environment?

Our oceans offer a variety of renewable and nonrenewable resources that we use for various

purposes. One such resource is sea salt. Sea salt can be extracted from the ocean through a

process called desalination. While this process helps provide an important resource (such as

salt and clean water) to human populations, it can also be costly. Removing large amounts of

salt from the Ocean can affect the pH of aquatic environments.pH is an important quantity that

reflects the chemical conditions of a solution. The pH can control the availability of nutrients,

biological functions, microbial activity, and the behavior of chemicals. Which statement best

classifies sea salt and describes its costs and benefits?

Deforestation is the clearance, or removal of a forest from land which is then converted to a

non-forest use. Deforestation can involve the conversion of forest land to farms, ranches, or

urban use. The most concentrated deforestation occurs in tropical rainforests. Deforestation of

areas considered to be rich sources of genetic material could limit future agricultural and

medical advances for future generations. How could deforestation limit agricultural and medical

advances?

When scientists and interested citizen groups attempt to improve the quality of life for Earth’s

population there are some factors that need to be considered. To make a well rounded

decision it is important to look at environmental and economic concerns. What is general

consideration that can be made when making policy decisions?

In 1976, Congress passed the Resource Conservation and Recovery Act to increase recycling

and conservation efforts as waste became a bigger problem in an urbanized world. The slogan

“reduce, reuse, recycle” was used to educate the community on environmentally friendly

practices. Which of the following is a benefit of such conservation efforts?

Increased use of fossil fuels as an energy source has increased the amount of carbon dioxide

emissions into the atmosphere. The graph below shows the levels of carbon dioxide emissions

among renewable and nonrenewable resources.

How does the monitoring of carbon dioxide emissions with atmospheric levels of carbon

dioxide affect our decisions on both renewable and non-renewable energy sources?

Renewable energies generate from natural sources that can be replaced over a relatively short time scale. The following are examples of renewable energy resources except: Examples of renewable energies include solar, wind, hydro, geothermal and biomass.

Nonrenewable energies come from resources that are not replaced or are replaced only very slowly by natural processes. The following are non-renewable energy sources except:

There are 10 ways to conserve energy. Which is not a correct way to conserve energy?1. Take advantage of a home energy audit .2. Repair any electrical issues in the home. 3. Invest in energy-efficient appliances for the home. 4. Use power strips wherever possible 5. Switch to LED light bulbs 6. Set the water heater to the lowest comfortable setting. 7. Do laundry often and iron every morning.

8. Turn off televisions, radios and computer monitors when not in use. 9. Program the thermostat 10. Check that the home is insulated properly.

Guam is an island in the Pacific Ocean covered in tropical forests. During WWII (1940’s) the green tree snake was accidentally released on the island. Of the 12 species of native birds on the island 10 are extinct and the last two are extinct in the wild. Historically the birds have had little to no natural predators. The large populations of birds would eat the fruit and spread the seeds over large parts of the forest. The snakes’ diet consists completely on birds. With the birds gone many populations of trees are beginning to fall. Which of the following best explains what is happening on Guam?

Wildlife bridges are pathways that wildlife can use to avoid crossing a highway. A scientist wants to determine if wildlife bridges could help the endangered Florida panther. In 2017 there were an estimated 120-230 adult panthers in the wild. In 2019 27 panthers were killed by collision with vehicles. Wildlife bridges like the one shown below are being considered in an effort to protect the Florida Panther. How could a scientist best monitor if more wildlife bridges should be built to protect the panther?

Scientists are researching the relationship between two species of fish. They count the number of individuals in an isolated population of each fish and the number of individuals in an area where both fish are found together.

Species Avg. Isolated Population Avg. Population When

Found Together

Fish A 120 120

Fish B 45 230

Using the data from the table which type of relationship do these two fish have?

DDT was a highly successful pesticide used in 1940’s until its ban in 1972. While highly effective against insects, populations of birds began to decline because of thinning eggshells. On top of that there were concerns about human health. How does the story of DDT show the importance of continued monitoring of ecosystems?

A community has had an increase of 5% in their population within the last year. As a result, city officials have planned to build a new commerce center that includes clothing stores, supermarkets, and restaurants. What is the most important consideration the local government should have about the environmental effects of this project prior to approving the plan?

It is a relationship in which both organisms benefit.

It is an interaction in which one organism kills and eats another.

It is a relationship in which one organism benefits & the other is harmed, like tapeworms and humans.

It is a relationship in which one organism benefits & the other is harmed, like tapeworms and humans.

It is the struggle between organisms to survive in a habitat with limited resources in the same place at the same time

Why should we remove an invasive species?

Which is a consequence of an increase in greenhouse gases?

What do we need to replace nonrenewable resources with?

As species go extinct what will happen to the biodiversity in that ecosystem?

What is biodiversity?

Which are example of fossil fuels?

Which are examples of renewable resources?

Deforestation results in more:

1. Scientists performed an experiment addressing the development of the theory of evolution. During the experiment the scientific team found very unusual results. Which statement best reflects what the scientists should do next?

1. Janelle believes that the results Josh found while doing his experiment are incorrect and not accurate. Which of the following statements explains what Janelle can do to prove that Josh’s results are incorrect?

1. Which of the following is the best indicator that an internet site is reliable?

1. Rachel is conducting a science experiment in which she examines the amount of methane released into the atmosphere from farming. She recently read an online article stating that scientists saw a decrease in methane when they substituted traditional grass for a dry seaweed product to use as food for cows. Rachel is not certain if the original online article can be trusted but she thinks it is a good basis for an experiment. What should be Rachel’s next step before she begins experimenting?