6.3 Notes - Freshwater Biomes

What is a characteristic of freshwater environments compared to marine environments?

• Freshwater environments are more extensive than marine environments.

• Freshwater environments are centers of biodiversity.

• Freshwater environments have less biodiversity than marine environments.

• Freshwater environments are not important to terrestrial communities.

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Why do most terrestrial communities rely on freshwater environments?

• Freshwater environments are less biodiverse.

• Freshwater environments are more extensive.

• Freshwater environments provide essential resources.

• Freshwater environments are isolated.

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What role do isolated pools, streams, and underground water systems play in deserts?

• They reduce biodiversity.

• They provide water to land animals and support biodiversity.

• They are not significant to the ecosystem.

• They only support plant life.

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What type of organisms are primarily found near the surface of freshwater lakes?

• Large fish and mammals

• Microscopic plants, animals, and protists

• Snails and burrowing worms

• Birds and reptiles

What is the term used for the bottom zone of a freshwater lake?

• Pelagic

• Abyssal

• Benthos

• Littoral

Which of the following statements is true about fish in freshwater lakes?

• Fish only stay near the surface

• Fish only stay at the bottom

• Fish move through the water column, sometimes near the surface and sometimes at depth

• Fish do not inhabit freshwater lakes

Which layer of a deep lake has the most light and oxygen levels?

• Epilimnion

• Thermocline

• Hypolimnion

• Benthos

What is the name of the zone at the bottom of a deep lake?

• Epilimnion

• Thermocline

• Hypolimnion

• Benthos

Which layer of a deep lake is characterized by a rapid change in temperature?

• Epilimnion

• Thermocline

• Hypolimnion

• Benthos

In which zone of a deep lake would you find rooted plants?

• Littoral zone

• Epilimnion

• Hypolimnion

• Benthos