Unit 2: Aquatic Biomes Flashcards

1
Q

Freshwater biomes are a vital source of what?

A

Drinking water.

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2
Q

Stream

A

Flowing freshwater carrying a small amount of water.

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3
Q

River

A

Flowing freshwater carrying a large amount of water.

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4
Q

Pond

A

A small body of standing freshwater.

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5
Q

Lake

A

A large body of standing freshwater.

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6
Q

Wetland

A

An area submerged by water for at least part of the year, but shallow enough to support emergent vegetation.

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7
Q

Marine biomes do what?

A

Supply Earth with oxygen and take in CO2 from the atmosphere because of algae.

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8
Q

Salt marshes

A

A marsh containing nonwoody emergent vegetation and salt water, located along the coast in temperate climates.

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9
Q

Estuary

A

An area where freshwater from rivers mixes with saltwater from the ocean, located along the coast.

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10
Q

Mangrove swamp

A

A swamp that contains salt tolerant trees with roots submerged in water, located along tropical and subtropical coasts.

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11
Q

Coral reef

A

The most diverse marine biome on earth, located in warm shallow waters beyond the coastline.

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12
Q

Open ocean

A

Deep ocean water located away from shore where sun can no longer reach the bottom.

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13
Q

What is at the bottom of the food chain in fast flowing rivers or streams?

A

Organic matter from terrestrial matter, like fallen leaves, because their pace doesn’t allow producers to grow.

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14
Q

Why do fast moving streams have a high dissolved oxygen?

A

The rapids mix oxygen with water.

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15
Q

Intertidal zone

A

The band of coastline between high and low tide.

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16
Q

Littoral zone

A

The shallow area near the shore where many producers can grow, most photosynthesis occurs here.

17
Q

Limnetic zone

A

The open water as deep as sunlight can reach. Rooted plants can no longer survive, only floating algae called phytoplankton.

18
Q

Profundal zone

A

The bottom of a deep lake where the sun doesn’t reach so producers can’t survive. Because of the decomposers consuming oxygen, there is a low DO.

19
Q

Benthic zone

A

The muddy bottom of a body of water.

20
Q

Mesotrophic

A

Bodies of water with a moderate level of productivity.

21
Q

How do wetlands reduce severity of flooding?

A

They take in large amounts of rainwater and slowly release it into groundwater or nearby bodies of water.