Semester 1 Final Exam Review

Multiple Choice

What is Ecology?

• The study of interactions between living things and their environment.

• living things

• A person that studies ecology

• nonliving things

Multiple Choice

What do you call a person who studies ecology?

• Ecologist
• Meteorologist
• Geologist
• Biologist

Multiple Choice

Creating a diagram to describe something in Ecology is an example of __________.

• observation

• experimentation

• modeling

Multiple Choice

Which of the following is an example of an abiotic factor?

• Sunlight

• Fungi

• Animals

• Bacteria

Multiple Choice

Is an elephant a biotic or abiotic factor?

• biotic

• abiotic

Multiple Choice

Is soil a biotic or abiotic factor?

• biotic

• abiotic

Multiple Choice

Is water a biotic or abiotic factor?

• biotic

• abiotic

Multiple Choice

Abiotic factors are ___________.

• non-living parts of an ecosystem

• living parts of an ecosystem

• things that once were alive, but now are dead

• not important parts of ecosystems.

Multiple Choice

Biotic factors are ___________.

• non-living parts of an ecosystem

• living parts of an ecosystem

• things that once were alive, but now are dead

• not important parts of ecosystems.

Multiple Choice

What are the biotic factors in this image?

• sunlight, elephants, and grasses
• sunlight, water,  and air
• elephants, plants, trees 

Multiple Choice

Which of the following is a biotic factor?

• sun

• temperature

• soil

• grass

Multiple Choice

A ____________ is a group of different populations living in the same area and interacting with each other.

• Population

• Ecosystem

• Community

• Ecosphere

Multiple Choice

A ____________ is a community and all of the nonliving components of the environment.

• Population

• Community

• Habitat

• Ecosystem

Multiple Choice

A ____________ is a group of the same organism living together in the same place at the same time?

• organism

• population

• community

• biome

Multiple Choice

What are groups of different populations living togther in the same place at the same time called?

• An organism
• A population
• A community
• A biosphere

Multiple Choice

When all the ecosystems on Earth are combined it is called...

• a community.
• a biome.
• a biosphere.
• an Earthsphere.

Multiple Choice

What level of organization can be seen here?

• Species
• Population
• Community
• Ecosystem

Multiple Choice

What are the ecological levels of organization from smallest to the largest?

• organism, population, community, ecosystem, biome, biosphere
• organism, community, population, ecosystem, biome, biosphere
• organism, population, community, biome, ecosystem, ecosphere.
• organism, community, population, biome, ecosystem, ecosphere

Multiple Choice

The process of producers using sunlight to make food is called __________.

• photosynthesis

• consumer

• food web

• prey

Multiple Select

An organism that makes its own food is called a(n) _________. Choose all correct answers.

• autotroph

• producer

• heterotroph

• decomposer

Multiple Choice

An organism that gets food by eating other organisms is called a ____.

• predator

• consumer

• herbivore

• carnivore

Multiple Choice

A consumer that only eats plants is a called a(n) ________.

• consumer

• omnivore

• consumer

• herbivore

Multiple Choice

A consumer that only eats meat is a called a(n) ________.

• carnivore

• ominvore

• scavenger

• herbivore

Multiple Choice

Consumer that eats both plants and animals is a called a(n) ________.

• herbivore

• omnivore

• carnivore

• scavenger

Multiple Choice

An animal that only eats dead animals is called a ____.

• consumer

• prey

• decomposer

• scavenger

Multiple Choice

An organism that breaks down the waste or remains of other organisms is called a _______.

• prey

• consumer

• scavenger

• decomposer

Multiple Choice

A connection of food chains with many food energy paths in an ecosystem is a ____________

• ecosystem
• food web
• environment
• population

Multiple Choice

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism

• competition

• predator/prey

• parasitism

Multiple Choice

What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

Multiple Choice

What is this called?

• Food Web
• Food Chain
• Abiotic Factors
• Energy Pyramid

Multiple Choice

According to the energy pyramid, what percentage of energy is transferred from primary consumers to secondary consumers?

• 1%

• 10%

• 100%

• 0.1%

Multiple Choice

What is the energy source for all food webs?

• Sun

• Water

• Food

• Rest

Multiple Select

Click on the image to make it larger!

Which animals give energy to the hawk? (Choose all correct answers)

• Mouse

• Wildflower

• Rabbit

• Snake

Multiple Select

The fox is a _______ and a _______ in this food web. (Choose all correct answers)

• Tertiary Consumer

• Producer

• Secondary Consumer

• Primary Consumer

Multiple Choice

Which of the following is a herbivore?

• cricket
• frog
• hawk
• shrew

Multiple Choice

Which trophic level has the most energy?

• Primary consumers

• Producers

• Secondary consumers

• Tertiary consumers

Multiple Choice

When water flows/travels over the surface of land its called _________.

• Runoff

• Condensation

• Precipitation

• Transpiration

Multiple Choice

What step of the water cycle does this picture show?

• Condensation

• Runoff

• Precipitation

• Evaporation

Multiple Choice

When water evaporates from the leaves of plants its called ______

• Condensation

• Runoff

• Precipitation

• Transpiration

Multiple Choice

What do you call the process of water changing from a liquid to a gas as it heats up?

• Condensation
• Runoff
• Precipitation
• Evaporation

Multiple Choice

What step of the water cycle is shown in this picture?

• Condensation

• Runoff

• Precipitation

• Evaporation

Multiple Choice

Which of the following removes carbon dioxide from the air?

• Photosynthesis by producers

• Fossil fuel combustion

• Animal respiration

• Plant respiration

Multiple Select

Select all that apply.

Which of the following processes add carbon into the atmosphere?

• fossil fuel combustion

• photosynthesis

• cellular respiration

• decomposition

Multiple Select

Select all that apply.

Which of the following processes remove carbon from the atmosphere?

• Photosynthesis

• Fossilization

• Compustion

• Cellular respiration

Multiple Choice

Look at the image. What process does this equation represent?

• photosynthesis

• cellular respiration

Multiple Choice

Look at the image. What process does this equation represent?

• photosynthesis

• cellular respiration

Multiple Choice

What organism changes nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• car exhaust

Multiple Choice

The process in which nitrogen circulates and is recycled is called

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The phosphorus cycle

Multiple Choice

A correct path that nitrogen could take would be

• air -> animals -> plants -> bacteria

• animals -> air -> bacteria -> plants

• bacteria -> air -> plants -> animals

• air -> bacteria -> plants -> animals

Multiple Choice

Which gas is the most abundant in the atmosphere?

• Hydrogen

• Oxygen

• Nitrogen

• Carbon Dioxide

Multiple Choice

The two male birds of the same species compete for mates. This is an example of ________.

• interspecific competition

• intraspecific competition

Multiple Choice

Predators of different species might compete for the same prey. This is an example of ________.

• unique competition

• interspecific competition

• territorial competition

• intraspecific competition

Multiple Choice

what type of competition is that?

• intraspecific

• interspecific

Multiple Choice

what type of competition is that?

• intraspecific

• interspecific

Multiple Choice

According to the competitive exclusion principle, what happens when two species try to occupy the same niche at the same time?

• One species will be forced to change its niche or move away

• Both species will coexist peacefully

• Both species will go extinct

• The environment will change to support both species

Multiple Choice

sharing resources to avoid competition is called ______.

• character displacement

• climax community

• resource partitioning

• pioneer species

Multiple Choice

Which of the following best describes the relationship between a predator and its prey?

• The predator hunts and eats the prey for food.

• The prey hunts and eats the predator for food.

• Both predator and prey benefit equally.

• Neither is affected by the other.

Multiple Choice

What is a predator?

• An animal that is killed and eaten by other animals

• An animal that kills and eats other animals

Multiple Choice

What is prey?

• An animal that is killed and eaten by another animal.

• An animal that kills and eats other animals.

Multiple Choice

Alligator

• Predator

• Prey

Multiple Choice

Wild Pig

• Predator

• Prey

Multiple Choice

Shark

• Predator

• Prey

Multiple Choice

Seals

• Predator

• Prey

Multiple Select

Which of the following are types of symbiosis? select all that apply.

• Mutualism

• Commensalism

• Parasitism

• Predation

Multiple Choice

A bird makes a nest in a tree.  The bird gets a house, but the tree is unharmed.

• Commensalism
• Mutualism
• Parasitism

Multiple Choice

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

• Commensalism

• Mutualism

• Parasitism

Multiple Choice

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

• host, hostess
• parasite, host
• host, parasite
• prey, predator

Multiple Choice

A tapeworm lives in the intestine of a cat and absorbs nutrients from the cat's food. This makes the cat very sick. which type of symbiosis is this?

• mutualism

• parasitism

• commensalism

• competition

Multiple Choice

Which type of population growth is limited by carrying capacity?

• Exponential growth

• Logistic growth

• Linear growth

• Unlimited growth

Multiple Choice

What are four factors that affect population size?

• Rain, Snow, Sleet, Hail

• Birth Rate, Immigration, Location, Community

• Emigration, Immigration, Species Size, Death Rate

• Immigration, Emigration, Death Rate, Birth Rate

Multiple Choice

The number of individuals in a population

• birth rate

• immigration

• population size

• emigration

Multiple Choice

The population size is 200 turtles.  20 turtles were born. 7 new turtles moved into the population. 15 turtles died. 8 turtles moved out of the population.

PG = (Birth Rate + Immigration) - (Death Rate + Emigration)

Did the population increase, decrease, or stay the same?

• Increase

• Decrease

• Stay the Same

• No Change

Multiple Choice

In the jungle, there is a population of 50 gorillas. Over the past year, 10 gorillas moved into the population, 20 gorillas moved out of the population, 25 gorillas were born and 50 gorillas died.

PG = (Birth Rate + Immigration) - (Death Rate + Emigration)

Did the population increase, decrease, or stay the same?

• Increase

• Decrease

• Stay the Same

• No Change

Multiple Choice

Birth rate: the number of __________ in a population over a certain time

• births

• deaths

• animals moving INTO

• animals moving OUT OF

Fill in the Blanks

Fill in the Blanks

Multiple Choice

Which term describes the number of organisms that have died in a population?

• Death Rate

• Birth Rate

• Immigration

• Emigration

Multiple Choice

What does population density measure?

• The number of individuals per unit area

• The number of births in a population

• The amount of food available

• The rate of population growth

Multiple Choice

Which of the following best describes a population with high population density?

• A large number of individuals packed closely together

• A small number of individuals spread out

• Individuals living in isolation

• Individuals living in different habitats

Multiple Select

Which of the following are examples of density-dependent limiting factors? Select all that apply.

• Competition

• Disease

• Extreme weather

• Predation

Multiple Choice

What type of growth is shown in the diagram?

• exponential growth

• logistic growth

• predator-prey cycle

• boom-bust curve

Multiple Choice

Largest number of individuals of a population that the environment can support...

• carrying capacity

• population

• biome

• mutualism

Multiple Choice

What is the carrying capacity for this sheep population?

• 2.0 million

• 1.0 million

• 1.5 million

• 0.5 million

Multiple Choice

If a disease is destroying wheat plants in a field, what would happen to the bird population that eats the wheat?

• The bird population would stay the same

• The bird population would increase

• The bird population would decrease

Multiple Select

Which of the following limiting factors is density independent? Select all that apply.

• water

• food

• natural disasters

• human activity

Multiple Choice

Which limiting factor would increase due to the number of individuals in a population?

• Unusual weather

• Natural disaster

• Disease

Multiple Choice

When a population grows past the ecosystem's carrying capacity it's called overshoot. What happens after overshoot?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

Multiple Choice

In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?

• Squirrel Population
• Sunlight
• Grass available

Multiple Choice

The way in which individuals of a population are spread out or organized is called ____.

• population density
• survivorship
• population dispersion
• logistic curve

Multiple Choice

Which image below shows uniform dispersion?

Multiple Choice

Which image below shows clumped dispersion?

Multiple Choice

Which image below shows random dispersion?