Food Chains and Food Webs

Front

The table shows the main food source of different organisms that make up a food chain. Which set of trophic levels correctly describes the organisms?

Back

Tags

7-LS2-3

Front

Which organism represents a primary consumer in the river basin food web? Options: live oak, huckleberry, gray squirrel, coyote.

Back

gray squirrel

Tags

7-LS2-3

Front

Which organism represents a producer in the river basin food web? Options: wild turkey, huckleberry, gray squirrel, coyote.

Back

huckleberry

Tags

7-LS2-3

Front

Which organism represents a secondary consumer in the river basin food web? Options: wild turkey, huckleberry, gray squirrel, coyote.

Back

coyote

Tags

7-LS2-3

Front

Study the diagram of an energy pyramid for an environment. Which statement summarizes the relationship between energy and trophic level?

Back

Organisms in the lowest trophic level have the most energy available to them.

Tags

7-LS2-3

Front

What happens to energy as it moves up the energy pyramid?

Back

Energy availability decreases.

Tags

7-LS2-3

Front

At which level do the caterpillars belong on the energy pyramid? Options:

S

,

R

,

Q

,

P

Back

R

Tags

7-LS2-3

Front

A wolf eats rabbits that feed on grass. At which level does the wolf belong on the energy pyramid? Options: S, R, Q, P

Back

Q

Tags

7-LS2-3

Front

Why is the same amount of energy not equal at every trophic level in an energy pyramid?

Back

Energy is lost as heat energy as it moves up trophic levels.

Tags

7-LS2-3

Front

The diagram shows a grassland food web. Which organism shown is a producer?

Options:

grass

,

grasshopper

,

rabbit

,

mouse

Back

grass

Tags

7-LS2-3