Unit 7 Review

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In which shaded section does an oak tree belong?

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What word best replaces the Y on the diagram?

• chemical

• biotic

• photosynthesis

• abiotic

Which list of characteristics describes organisms classified as animals?

• Unicellular, prokaryotic, autotrophic

• multicellular, eukaryotic, heterotrophic

• unicellular, eukaryotic, heterotrophic

• multicellular, eukaryotic, autotrophic

Which answer choice includes only biotic factors in the picture?

• water, grass, tree

• sun, dead log, fungus

• grass, rocks, sun

• fungus, dead log, grass

The organism level is represented by the?

• single tree

• water and grasses

• soil and mushrooms

• grasses

Why are dead organisms considered biotic?

• they have never been alive

• they were once living

• they are composed of prokaryotic cells

• the ecosystem burned

A deer's population includes?

• other deer

• the grass the deer eats

• water in a nearby stream

• the soil in the area

• organism

• population

• community

• ecosystem

In a pond ecosystem, red-winged blackbirds, mosquitoes, algae, lily pads, cattails and perch are part of the

• population

• community

• abiotic components

• a food chain