Freshwater Biomes

Question 1

Epilimnion

Answer 1

The uppermost and thus the most oxygenated layer of freshwater

Question 2

Hypolimnion

Answer 2

The lowest, colder, and denser layer of freshwater

Question 3

Thermocline

Answer 3

the transition layer between the warmer mixed water at the surface and the cooler deep water below.

Question 4

Littoral Zone

Answer 4

Beginning with the very shallow water at the shoreline and extending to the depth at which rooted plants stop growing
Plants and animals that reside in this zone receive abundant sunlight

Question 5

Limnetic zone

Answer 5

The surface of open ocean water, the region that extends to the depth that the sunlight can penetrate. Organisms that are residents in this zone tend to be short lived and rely on sunlight.

Question 6

Profundal zone

Answer 6

The depths: water that is too deep for sunlight to penetrate. Because the profundal zone is aphotic (a place where light cannot reach) photosynthesizing plants and animals cannot live here ; instead, organisms adapted to little light, colder temperatures , and less oxygen reside in this less populated zone

Question 7

Benthic zone

Answer 7

The surface and sub-surface layers of the rivers, lakes, pond, or streambed characterized by very low temperatures and low oxygen levels and inhabited by organisms that live on, in, or below the sediment surface

Question 8

Wetlands

Answer 8

Lowland areas, such as marshes or swamps, that are saturated with moisture especially when regarded as the natural habitat or wildlife

Question 9

Mangrove Swamps

Answer 9

Coastal wetlands (areas of land covered in fresh water, salt water, or a combination of both) found in tropical and subtropical regions

Question 10

Estuary

Answer 10

The part of the wide lower course of a river where its current is met by the tides

Question 11

Subcategories of estuarine environments

Answer 11

Saltwater Marshes, Mangrove Forests, Inlets, Bays, and river mouths