_______________ use air, water, and sunlight to grow.

• Producers

• Consumers

• Decomposers

• Scavengers

________________ eat those plants or consumers to get matter for growth.

• Producers

• Consumers

• Decomposers

• Scavengers

______________ get matter for growth from dead producers and consumers.

• Producers

• Consumers

• Decomposers

• Scavengers

When decomposers die, the matter enters the air and soil, so _____________ can use it again.

• Producers

• Consumers

• Decomposers

• Scavengers

Like matter, energy does cycles through an ecosystem.

• True

• False

Energy in an ecosystem moves from _________________.

• sun -> producers -> consumers

• producers -> consumers -> sun

• sun -> consumers -> producers

• consumers -> producers -> sun

At each organism in a food chain, most of the energy is lost as ______________.

• waste

• leftovers

• heat

• sound

_________________ are models that show how energy moves in one part of an ecosystem.

• food chains

• food nets

• food pyramids

• food webs

_________________ are models that show how much of the original energy is still available at each level of the food chain.

• food chains

• food nets

• food pyramids

• food webs

_________________ are models that show how all of the different organisms in an ecosystem are linked together.

• food chains

• food nets

• food pyramids

• food webs