CarryC1 Exam

The place in an ecosystem where an organism lives.

• Habitat
• Ecosystem

What is this an example of?

• Food Web

• Food Chain

• Energy Pyramid

• Energy Web

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This image is showing an example of a...

• Food chain

• Food source

• Food web

• Population

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What is the difference between a decomposer and a scavenger?

• A decomposer breaks down the remains of organisms, while a scavenger produces its own food by using sunlight.

• A decomposer (usually a carnivore) consumes the remains of dead animals, while a scavenger breaks down the remains of organisms.

• A decomposer breaks down the remains of organisms, while a scavenger (usually a carnivore) consumes the remains of dead animals.

• A decomposer and scavenger are the same thing.

What is the difference between a food web and food chain?

• A food web is a simple model and consists of only a few organisms, while a food chain is a more complex model that describes how organisms receive energy from other organisms.

• A food chain is a simple model and consists of only a few organisms, while a food web is a more complex model that describes how organisms receive energy from other organisms.

• A food web is a simple model and consists of many organisms, while a food chain is a more complex model that describes "who eats who."

• A food chain is a simple model and consists of only a few organisms, while a food web is a more complex model that describes "who eats who."

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What do the arrows represent in this diagram?

• The arrows represent the flow of energy through the food web.

• The arrows represent who eats who in the food web.

• The arrows represent the direction the organism travels throughout the ecosystem.

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What would most likely happen if farmers started using pesticides that killed the insects living above the ground?

• the flowering plant population would increase

• the rat population would decrease

• the snake population would increase

• the corn population would decrease

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How would scientists model a food chain to show the flow of energy in a desert ecosystem? (flow left to right)

• lizards -- cacti -- Sun -- insects -- foxes

• Sun -- cacti -- insects -- lizards -- foxes

• foxes -- lizards -- insects -- cacti -- Sun

• insects -- Sun -- cacti -- foxes -- lizards

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What would most likely happen to the populations of organisms in a forest ecosystem if there were no rain for a long period of time?

• grass and tree populations would increase because they only need sunlight and soil to get nutrients

• all the populations in the forest would remain the same because the amount of rainfall only affects non-living factors

• hawk and rabbit populations would increase because they would not have to compete with plant populations for water

• all the forest populations would decrease because producers would not be able to survive to supply nutrients to consumers

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6. A scientist was studying an area in South Carolina. He recorded the average temperature and rainfall of the area. He found that the soil in the area was very wet. He recorded that the area contained alligators, beavers, cypress trees, Spanish moss, snakes and frogs.

What was he most likely describing with all this data?

• a swamp community

• a swamp ecosystem

• a desert community

• a desert ecosystem

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