Test Review

What refers to all the living and nonliving things in a given area?

• biotic factors
• abiotic factors
• ecosystem

A log can be considered an ecosystem.

• True
• False

What does the prefix bio- mean?

• life
• light
• without

What are the living parts of an ecosystem called?

• biotic factors
• abiotic factors
• atmospheric factors

What are the nonliving parts of an ecosystem called?

• biotic factors
• abiotic factors
• atmospheric factors

What is a biotic factor in an ecosystem?

• the amount of rainfall
• the angle of the Sun
• a plant living near a stream
• the types of minerals present in the soil

What is an example of an abiotic factor?

• soil
• fish
• humans
• plants

During which month does Washington, DC, receive the most precipitation?

• February
• April
• August
• December

Is precipitation considered an abiotic or a biotic factor?

• abiotic
• biotic

What is the source of most energy on Earth?

• air
• soil
• the Sun
• water