12.5 Marine Life

Question 1

Abyssal zone

Answer 1

The benthic environment between 4,000 and 6,000 m (13,000-20,000 ft) in depth.

Question 2

Aquaculture

Answer 2

The farming of aquatic life in the ocean.

Question 3

Bathyal zone

Answer 3

The benthic environment which extends down the continental slope towards upper parts of the abyssal plains, ranging in depth from 200 m (660 ft) to roughly 4,000 m (13,000 ft).

Question 4

Benthic

Answer 4

Relating to ocean floor environments.

Question 5

Benthos

Answer 5

Organisms that live on or in the ocean floor.

Question 6

Hadal zone

Answer 6

The benthic environment which occupies the deep sea trenches.

Question 7

Intertidal zone

Answer 7

The shallowest benthic environment, located between the water boundaries during high and low tides.

Question 8

Nekton

Answer 8

The actively swimming organisms of the ocean.

Question 9

Neritic zone

Answer 9

The portion of the pelagic zone overlying the continental shelf.

Question 10

Nutrient

Answer 10

A substance other than oxygen, carbon dioxide, or water that is required for organisms to live.

Question 11

Oceanic zone

Answer 11

The great volume of the open ocean beyond the continental shelves.

Question 12

Pelagic

Answer 12

Relating to open water ocean environments above the ocean floor.

Question 13

Photic zone

Answer 13

The thin, uppermost part of the ocean that is shallow enough to be lighted by sunlight. The photic zone is approximately 100-200 m (330-660ft) thick.

Question 14

Phytoplankton

Answer 14

Plankton that use photosynthesis.

Question 15

Plankton

Answer 15

Organisms in water which are either free-floating or weakly swimming.

Question 16

Sublittoral zone

Answer 16

The benthic environment that extends from the intertidal zone out to the edge of the continental shelf.

Question 17

Upwelling

Answer 17

The process of deep, cold, nutrient-rich waters rising to the surface.

Question 18

Zooplankton

Answer 18

Animal-like plankton that do not use photosynthesis.