Chapter 9 Lesson 1 - Biomes and Ecosystems

A habitat refers to all the populations in an ecosystem.

• True

• False

A community consists of all the organisms in an ecosystem that belong to the same species.

• True

• False

Which of the following is correct?

• A biome is part of an ecosystem. An ecosystem is part of the biosphere.

• An ecosystem is part of the biosphere. The biosphere is part of a biome.

• A biosphere is part of a biome. A biome is part of an ecosystem.

• An ecosystem is part of a biome. A biome is part of the biosphere.

What is a biome?

• the living and nonliving things in one place

• the parts of Earth and the surrounding atmosphere where there is life

• a large region on Earth with a specific climate, physical features, plants, and other organisms

• none of the above

When an ecosystem changes, the results are _____.

• all positive

• all negative

• neither positive nor negative

• mixed between positive and negative

Changes in the environment _____.

• always happen very quickly

• always happen very slowly

• can happen either quickly or slowly

• only effect the biotic factors of the area

If several species of fish are in a pond, what is it called?

• a community

• a population

• a biosphere

• an energy pyramid

Kelli lives in Arizona on the edge of the desert. Ivy lives on the edge of the Sahara desert. Kelli says they live in the same ecosystem. Is she correct? Why or why not?

• She is incorrect. An ecosystem is all the living and nonliving things in one place

• She is correct. An ecosystem is all the living and nonliving things in one place

• She is correct. An ecosystem is all the living and nonliving things in one type of place

• She is incorrect. An ecosystem is all the living and nonliving things in one type of place

Tom looks out his window. Which observation includes a biotic factor of the ecosystem he is in?

• It is raining

• There are worms on his sidewalk

• The water in his pond is higher than usual

• The clouds are darker than they had been a little earlier

Which of these is NOT an abiotic part of an ecosystem?

• water

• soil

• atmosphere

• populations