Unit 2, Quiz 1

____ cannot be created/destroyed.

• energy

• matter

• both of these

Primary consumers

• Are at the bottom of the food chain

• Eat secondary consumers

• Eat primary producers

• Perform photosynthesis

Chemosynthesis

• Uses sunlight to make sugars

• Is more efficient than photosynthesis

• Is only done by consumers

• None of these are true

Plants are responsible for most of the ocean's primary production

• True

• False

Is chemosynthesis a source of primary production?

• Yes

• No

Which cycles material faster?

• Marine ecosystems

• Terrestrial ecosystems

• Both equally

Only heterotrophs perform respiration

• True

• False

Which is usually the most accurate in describing actual trophic relationships?`

• Food web

• Food chain

• Trophic pyramid

• All are equally accurate.

10% of energy is lost every time energy is transferred to the next level.

• True

• False

Which lifestyle includes the freely swimming?

• Plankton

• Nekton

• Benthos

• All of these