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Biology > Module 177:Aquatic Biomes > Flashcards

Module 177:Aquatic Biomes Flashcards

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1
Q

Aquatic Biome covers what percent of the planets surface?

A

It covers 3/4 of the planets surface and can be up to 6 miles deep

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2
Q

What is a water cycle?

A

A pattern of evaporation and condensation that transfers water from one biome to the other

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3
Q

Two types of aquatic biomes?

A
  1. Freshwater (3% of aquatic biomes)

2. Saltwater

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4
Q

Salinity varies from?

A

0.03-30%

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5
Q

Most organisms can only tolerate a relatively narrow range of salinity, though there are exceptions like?

A

Salmon

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6
Q

Salinity % Ranges

  1. Fresh
  2. Brackish (Rivers Enter into Ocean)
  3. Salt
  4. Brine or Hypersaline (Dead Sea)
A
  1. is less than 0.05
  2. is 0.05-2.9
  3. 3.0-4.9
  4. is greater than or equal to 5.0
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7
Q

Most important nutrients include?

A

Nitrogen and phosphorus compounds

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8
Q

Nitrogen and phosphorus compounds affect ….. at the base of the food web

A

primary producers

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9
Q

Biomes are low in nutrients and can support relatively little biomass?

A

Oligotrophic Biomes

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10
Q

Biomes are high in nutrients, and have much more biomass?

A

Eutrophic Biomes

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11
Q

Can human activities cause eutrophicationof aquatic biomes?

A

Yes, they can

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12
Q

Primary producers?

A

Microbes(plankton)- photosynthesis

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13
Q

Where would you expect to find the limnetic zone of a lake?

A

open water

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14
Q

A coastal body of water partly surrounded by land with input from both sea and fresh water is called ___.

A

an estuary

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15
Q

The deepest zone in a large lake, below where the sunlight penetrates, is the ___.

A

profundal zone

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16
Q

Eutrophic lake water typically has what characteristic?

A

It is shallow.

17
Q

The ___ is the zone near a lake’s shoreline where light is abundant.

A

littoral

18
Q

Which of the following would NOT apply to freshwater wetlands?

A

drought resistant plants

19
Q

Freshwater biomes can be distinguished from saltwater biomes by a number of characteristics. Which of the following is most likely to be observed in a freshwater biome?

A

salinity of less than 0.05%

20
Q

The benthic zone of coral reefs is formed out of ___.

A

coral skeletons

21
Q

The characteristics of the water from the surface to the bottom of the body of water?

A

Water Column

22
Q

What is Photic zone?

A

Sufficient light for photosynthesis

23
Q

What is Apothic zone?

A

Not enough light for photosynthesis

24
Q

Benthic region?

A

Bottom if the body of water

25
Q

Inshore (littoral) zone?

A

Boundary between terrestrial and aquatic biome

26
Q

Offshore (limnetic) zone?

A

Open water

27
Q

Lakes & Ponds

A

Are non-flowing, 87% of Earths freshwater

28
Q

Wetlands

A

11% of freshwater biomes. Little to no flowing water. Iittoral very diverse animals live on water and land.

29
Q

Rivers

A

Begin at a HEADWATER come from lake, rainfall, mountain runoff.

30
Q

What is considered the Mouth?

A

Is where river empties into another river, lake or ocean.

31
Q

Marine Biome

A

largest biomes on the planet. examples Estuaries, Intertidal zones, Coral Reefs, Open Ocean

32
Q

Estuaries?

A

Where mouth of river meets ocean

33
Q

Intertidal zones

A

Found on coastlines between areas of low and high tides

34
Q

Inshore region is called

A

Neritic zone and light penetrates to the bottom

35
Q

Moving out from shore continental shelf turns into

A

Continental slope

36
Q

Open water region is called the?

The full water column is called the?

A

Oceanic zone

Pelagic zone

37
Q

The deepest part of the ocean?

Name referring ti the ocean floor?

A

Abyssal zone

Abyssal plain

38
Q

Corals reefs?

A

produce calcium carbonate skeletons

Biology (15 decks)

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