Ecosystems

EcosystemsMr. Ball’s 4th grade class

A(n)___________ is all the living and nonliving things in an environment and the many ways they interacta. Carnivore

b. ecosystem

c. habitat

d. region

An area’s ______________ is made up of all the members of one species that live in an area

A. habitat

b. ecosystem

c. adaptation

d. population

This is the area or place where an organism lives

a. habitat

b. ecosystem

c. population

d. hibernation

Jessica ate a turkey sandwich and a salad for lunch. This makes her a A. herbivore

b. carnivore

c. omnivore

d. producer

________________ assist in the food chain by breaking down dead animals and plants

a. producers

b. consumers

c. omnivores

d. decomposers

A ____________ will eat only grass and other plantsA. omnivore

b. carnivore

c. herbivore

d. consumer

In an energy pyramid, plants are at the base of the pyramid because

A They are not very important

b. plants grow from the ground

c. There are so many plants and they are at the bottom of a food chain

d. There are not very many plants

A system of overlapping food chains in which the flow of energy branches out in many directions

A. energy pyramid

b. food web

c. food chain

d. circle of life

Which of these is an example of hibernationA Owls sleep during the day and hunt at

night

b. Many bears sleep during the cold months to conserve energy

c. you like to take a nap after lunch on weekends

d. Ducks go days without sleep when they are migrating

Food, water, and oxygen, are all _____________ that animals compete for

A. adaptation

b. resources

c. hibernation

d. food

The movement of worn away rocks and soil

A. competition

b. erosion

c. earthquake

d. decomposers

__________________ occurs when two or more living things need the same things to liveA. resource

b. competition

c. repetition

d. erosion

Which of these is a producer?A. grass

b. deer

c. hawk

d. dog

Which adaptation would be most useful to an animal who eats nectar from plants?

A. wings

b. fins

c. short beak

d. claws.

What would most likely happen if a large number of plants in an ecosystem die from disease

A the population of the decomposers will get smaller

b. the population of consumers will get smaller

c. the population of consumers will get larger

d. there will be no change

Which of these things that animals need, travels through a food chain?

A. air and sunshine

b. herbivores

c. ecosystems

d. nutrients and minerals

How does the bee-like appearance of it’s flower help the bee orchid?

A. it scares away people who might pick it

b. it does not help it

c. it attracts bees to pollinate the orchid

d. it makes it look pretty

Explain Why is an animal’s energy traced back to plants and the sun?

Animals either get their energy from eating plants or from eating other animals that eat plants

How is a food web different from a food chain?

A food chain is simple. One animal eats something, then another animal eats that animal, and another animal eats that animal. A food web, however is made up of many overlapping food chains where more than one animal may eat or be eaten by more than one other animal.

What would happen to the other organisms if all the plants in this ecosystem died?

Since the other members of the ecosystem cannot make their own food, they would have to leave the area or they would starve.

Which organisms shown are producers?

The grasses, trees, cattails, and other plants are all producers.

Which organisms shown are consumers?

The bear, squirrel, fish, frog, insect [or dragonfly], and lizard are all consumers.

Use the organisms pictured in this ecosystem to construct a food chain.

plant -> dragonfly -> lizard; plant -> insect -> fish -> bear.