Chapter 18.2 Review (7th) Question Preview (ID: 36543)


Living Things Need Energy. TEACHERS: click here for quick copy question ID numbers.

An organism that eats both plants and animals
a) omnivore
b) carnivore
c) herbivore
d) consumer

A diagram that shows the feeding relationships between organisms in an ecosystem
a) food chain
b) food web
c) energy pyramid
d) energy web

An organism that eats animals
a) decomposer
b) consumer
c) omnivore
d) carnivore

Organisms that eat other organisms. They cannot use the sun’s energy to make food like producers can. Instead, they eat producers or other animals to obtain energy
a) producers
b) omnivores
c) carnivores
d) consumers

Herbivores, carnivores, and scavengers are all examples of
a) producers
b) decomposers
c) consumers
d) omnivores

Grass is eaten by a prairie dog. The prairie dog is eaten by a coyote. This is an example of
a) an abiotic element
b) an omnivore
c) a herbivore
d) a food chain

To survive, living things need
a) grasslands.
b) energy.
c) clothing.
d) species.

Organisms that use sunlight to make food are called
a) algae
b) producers
c) photosynthesis
d)

The process of making sunlight into food is called
a) algae
b) producers
c) photosynthesis
d)

Plants, _____________________, and some bacteria are producers.
a) algae
b) producers
c) photosynthesis
d)

How is a food web different from a food chain?
a) A food web is smaller.
b) A food web shows more relationships.
c) A food web is simple.
d) A food web has spiders.

How can the absence of wolves affect elk populations?
a) the elk eat more animals
b) the elk leave the wilderness
c) the elk overgraze the grass
d) the elk die out

Why were gray wolves brought back to Yellowstone National Park?
a) to help the elk
b) to restore the natural energy flow
c) to keep the grass from taking over
d) to eat the cows and sheep

What kind of elk do wolves kill?
a) the strong and healthy
b) the old, injured, and diseased
c) the smart and quick
d) the energetic and fast

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