U3L1E1: Flow of Energy and Matter in Ecosystems

Which process do plants use to turn sunlight into food energy?

• photosynthesis

• cellular respiration

• transpiration

• evaporation

Which kind of organism is an autotroph?

• consumer

• producer

• decomposer

• herbivore

Which organisms are heterotrophs?

• photosynthesizers

• producers

• consumers

• plants

Which organism is an example of a producer?

• moth

• mushroom

• rose bush

• cheetah

Why are mushrooms important to the food chain?

• They recycle nutrients into the ecosystem.

• They produce food energy for other living things.

• They recycle oxygen into the atmosphere.

• They consume excess herbivores in the ecosystem.

In the food chain below, which is the producer?

grass --> mouse --> snake --> hawk

• grass

• mouse

• snake

• hawk

Which is the primary consumer in this food chain?

• rabbit

• grass

• snake

• hawk

Which of the following describes an interconnection of food chains in an ecosystem?

• Food chain

• Food web

• Energy pyramid

• Producer web

What is this an example of?

• Food chain

• Food web

• Energy pyramid

• Energy web

Which organism is the primary consumer?

• Phytoplankton

• Gulls and terms

• osprey

• herbivorous duck