WorksheetsEarth's Diversity Bio Review
Total questions: 20
Worksheet time: 2hrs 40mins
The majority of marine organisms are found in coastal regions, rather than the open ocean. Which of the following best explains why?
Ocean currents bring nutrient-rich water into coastal regions
Salinity is usually much higher in coastal regions.
The shallow waters of coastal regions provide less oxygen
Temperatures are cooler in coastal regions.
Which of the following explains the role of fungi and slime molds as pictured in the rainforest food web shown below?
They are heterotrophs that get their energy by consuming plants, herbivores, and other primary consumers.
They are producers that make food by converting water and carbon dioxide into glucose and oxygen, using energy from the Sun.
They are autotrophs that use chemicals as an energy source to produce food when sunlight is not available.
They are decomposers that break down organic wastes and dead organisms into compounds used by plants for photosynthesis.
A desalination plant is set up in a bay to provide fresh, drinkable water by removing salt from ocean water and returning the removed salt to the bay. How might the resulting increase in salinity in the bay affect the fish populations?
Temperatures would decrease making a more suitable environment for fish populations.
Low levels of dissolved oxygen would decrease the diversity of fish populations.
Fish populations of all the species already living there would increase.
The food sources available to the fish populations would increase
Which of the following describes what might happen with a sudden increase in precipitation in the grassland biome?
Rise in drought-tolerant plants
Salt and sediment deposition
Increase in plant and animal diversity
Nutrient loss and soil erosion
How do many of the mammals that inhabit deciduous forests deal with the conditions of the winter season?
They forage or hunt at night.
They hibernate or stockpile food.
They migrate to warmer areas.
They develop symbiotic relationships
At what points during the year are fish—which need a large amount of dissolved oxygen—most likely to be evenly distributed throughout the water of a lake that freezes over in winter?
Fall and winter when the water is warmer
Summer and winter when warm water settles on the bottom
Spring and fall when warm and cold water mixes
Spring and summer when the cold water settles on top
Which of the following correctly compares the changes that take place in an ecosystem during primary succession and secondary succession?
Primary succession takes place quickly on newly formed land, while secondary succession occurs over a long period of time in an area that has been disrupted by a natural disaster
Primary succession takes place over a long period of time in an area that has been disrupted by a natural disaster, while secondary succession occurs quickly on newly formed land.
Primary succession takes place quickly in an area that has been disrupted by a natural disaster, while secondary succession occurs over a long period of time on newly formed land.
Primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster.
Which of the following is an example of how a biotic factor can affect the population dynamics in an ecosystem?
Excessive rain and flooding cause organisms in an area to relocate.
The population of a predator increases following an increase in the population of its prey.
Seasonal temperature changes cause a species to migrate between two ecosystems.
Excessive rain and flooding cause organisms in an area to relocate.
Pete had grown tired of his fish tank and would like to get rid of the fish and contents of the tank in a nearby freshwater canal. Which argument presents the most devastating consequences of Salvatore's dumping of
the tank?
He may be killing the creatures living in the tank.
He may be destroying the opportunity for owning pets in the future.
He may be introducing an invasive species that will damage the ecosystem.
He may be polluting the lake with the contents of the tank.
Domestic cats can begin reproducing as young as six months of age. Each female cat can produce two litters per year, containing multiple cats that can also begin reproducing early. What prediction can you make about an
ecosystem in which cat populations are not controlled?
Within a few years the population of cats would increase slowly, level off, and stabilize.
Within a few years there would be many starving cats.
Rats and other small animals would initially suffer but then quickly develop survival skills.
A predator for the cats would rapidly appear to match the population growth.
Every year, millions of acres of land are cleared by forest fires. Which of the following best describes a consequence of these catastrophic events?
Biodiversity will decrease in the area of the fire.
Invasive species will quickly take over the disturbed area.
Population sizes will increase as new species move into the cleared area.
Carbon dioxide levels decrease rapidly in the areas near the fire.
Which of the following describes environmental parameters that are most important to consider prior to building a housing development?
The number of people the development would house
The impact that clearing the land would have on local wildlife
The amount of money the new residents would be assessed in taxes
The average precipitation the area receives
Which of the following best describes what happens to water molecules after they have condensed to form clouds?
They will combine to form runoff and flow into rivers, lakes, and oceans.
They will undergo evaporation and change to a gas.
They will undergo transpiration and become water vapor.
They will fall to Earth as precipitation in the form of rain, sleet, or snow.
Which of the following best describes a benefit of one type of nonrenewable energy?
Petroleum can be found nearly anywhere and is easily extracted.
Natural gas does not produce greenhouse gases as other energy sources do.
Coal is relatively inexpensive compared to other forms of energy.
Nuclear power does not produce any form of pollution.
Which of the following best describes the long-term impact of using a renewable energy source?
Natural gas causes air pollution when burned.
Nuclear power produces harmful radiation.
Biomass releases greenhouse gases when burned.
Wind power can pollute air supplies.
In the Arctic Ocean, there are very few large aquatic plants. Which of the following best explains why?
Sea ice decreases the salinity of the water to a level not suitable for plants.
Plants are unable to attach to the deep sea floor.
Currents are too strong for plants to survive.
Plants have a difficult time surviving due to long periods of darkness.
The eggs and larvae of marine animals tend to require water with more dissolved oxygen in it than the adults do. If water flows from a freshwater source into a salt water bay, what effect would this have on the population of marine animals?
The freshwater would decrease the populations of marine animals by decreasing both salinity and oxygen levels.
The nutrient-rich freshwater would encourage algal blooms, thereby increasing the levels of oxygen and marine animals.
The freshwater would increase the populations of marine animals because it holds more oxygen than the salt water.
The freshwater would decrease the populations of marine animals because it would deplete the salt water of oxygen.
Seasonal conditions influence the life cycle of marine organisms. Many animals that inhabit lakes have a reproductive process that occurs during the spring. Which best explains why this is beneficial?
The cycling of water during this time produces consistent temperatures at each depth.
During this time the oxygen levels are higher at the top of the lake where the processes take place.
The metabolism of animals is slowest at this time so their demands for food are low.
During this time the temperatures are low at the bottom of the lake where the processes take place.
For the past 20 years, the population of the invasive Asian Carp in the Mississippi River has skyrocketed while populations of native species have declined. Which of the following conclusions provides the best explanation for this phenomenon?
The carp out-competed the native species for food and space.
The food sources preferred by the carp increased.
The native species migrated to new areas, while the carp remained.
The native species contracted a virus that the carp were immune to.
Which of the following is the best example of a way human lifestyles affect environmental systems?
Using radioactive materials causes ground pollution when chlorofluorocarbons (CFCs) seep into the ground.
Using aerosol sprays increases the amount of ozone (O3) in the atmosphere.
Burning fossil fuels increases the amount of greenhouse gases in the atmosphere.
Deforestation causes water pollution by decreasing water vapor in nearby lakes and rivers.
