Section 19.4 - Food Chains, Food Webs, & Energy Pyramids

foxes

A forest ecosystem supports the food chain indicated in the energy pyramid above. Which type of organism would you expect to find the FEWEST of in the ecosystem? - acorns - squirrels - raccoons - foxes

10%

About how much energy is transferred from one level of an energy pyramid to the next higher level? - 10% - 25% - 35% - 50%

three

How many primary consumers does this food web include? - one - two - three - four

deomposers

In general, which types of organisms survive at the lowest energy level? - producers - primary consumers - deomposers - tertiary consumers

snake

Which of the following is a tertiary consumer? - beetle - mouse - bird - snake

carnivore

Which of the following will be at the top of an energy pyramid? - decomposer - producer - herbivore - carnivore

fox

Which organism in the food chain FEEDS on a secondary consumer? - algae - snail - chicken - fox

snail

Which organism in the food chain is a primary consumer? - algae - snail - chicken - fox

algae

Which organism in the food chain is a producer? - algae - snail - chicken - fox

squirrel

Which organism in the food web is NOT a predator? - bird - snake - eagle - squirrel

eagle

Which organism in the food web is the top consumer? - bird - snake - eagle - squirrel

foxes

Which organism receives the LEAST amount of energy from producers? - acorns - squirrels - raccoons - foxes

the acorns

Which organism represented by this food pyramid has the MOST available energy? - the squirrels - the acorns - the raccoons - the foxes

They help to recycle nutrients back into the soil.

Why are fungi and bacteria important in a food web? - They are an important food source for primary consumers. - They are producers. - They help to recycle nutrients back into the soil. - They are in important food source for secondary consumers.