Energy Flow in Ecosystems Review Questions

Front

In this food web, how many different organisms feed on the producer?

Back

3

Front

If the bird population DECREASED, which populations would INCREASE as a result?
Options: bees and deer, bees and grasshoppers, snakes and hawks, grasshoppers and rabbits

Back

bees and grasshoppers

Front

Which is an apex predator in this food web? (Hint: pay close attention to the arrows!)

squid

,

penguin

,

seal

,

krill

Back

seal

Front

In this aquatic food web, which organisms eat the squid?

Back

seal and seagull

Front

In this food web, a ___ is a primary consumer and a ___ is a secondary consumer.

Back

mouse, snake

Front

If a disease eliminated the hawk population, which population would immediately INCREASE? Options: grasshopper, snake, grass, hawk

Back

snake

Front

If a disease eliminated the frog population, which population would immediately INCREASE? Options: grasshopper, snake, hawk, grass

Back

grasshopper

Front

If a disease eliminated the snake population, which population would immediately DECREASE? Options: hawk, frog, grasshoppers, grass

Back

hawk

Front

A species on which other species in an ecosystem largely depend, and if it were removed, the ecosystem would change drastically.

Back

keystone species

Front

When energy is passed in an ecosystem from one trophic level to the next, only ___ percent of the energy will be passed on.

Back

10