Ecosystem Test

Many microorganisms live in soil. What do all the microorganisms of the SAME species living in an area's soil make up?

• an ecosystem

• a population

• a community

• a habitat

Which is an example of an abiotic factor in an ecosystem?

• grass

• moss

• trees

• sunlight

What do all the populations in an ecosystem make up?

• habitat

• niche

• community

• ecosystem

What is the best example of an interaction between a biotic factor and an abiotic factor?

• sunlight warms a rock

• a bird feeding it's young

• a wolf drinks from a stream

• an elephant uproots a tree

Where would you most likely find a salt marsh?

• on an ocean floor

• near a grassland

• beside a large lake

• at the edge of an estuary

How do ecosystems in the deep sea differ from ecosystems in shallow ocean water?

• water pressure is lower in deep-sea ecosystems

• algae is more common in deep-sea ecosystems

• deep-sea ecosystems usually have warmer water

• little sunlight reaches deep-sea ecosystems

Which ecosystem is MOST LIKELY to be found in South Carolina?

• deep ocean

• deciduous forest

• taiga

• temperate rain forest

How is a lake ecosystem different than a pond ecosystem?

• lake ecosystems are shallow

• ponds have very few plants around the perimeter

• the water in a lake is deeper and gets less sunlight

• lake water is saltier than pond water

Which of these is the most complete description of an ecosystem's parts?

• all the rocks, soil, and air in an area

• all the sources of water in an area

• all the plants and animals in an area

• all the living and nonliving things in an area

Which ecosystem is most likely to have fertile soil for growing crops?

• salt marsh

• estuary

• grassland

• pond