Nitrogen Cycle

Question 1

The process by which organisms, typically animals, obtain food.

Answer 1

Feeding

Question 2

The process of eliminating or expelling waste matter.

Answer 2

Excretion

Question 3

The action or fact of dying or being killed; the end of the life of a person or organism.

Answer 3

Death

Question 4

The state or process of rotting; decay.

Answer 4

Decomposition

Question 5

The biological oxidation of ammonia to nitrite followed by the oxidation of the nitrite to nitrate occurring in separate organisms or direct ammonia oxidation to nitrate in comammox bacteria.

Answer 5

Nitrification

Question 6

The chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.

Answer 6

Nitrogen fixation

Question 7

A microbially facilitated process where nitrate is reduced and ultimately produces molecular nitrogen through a series of intermediate gaseous nitrogen oxide products.

Answer 7

Denitrification

Question 8

The process by which one thing absorbs or is absorbed by another.

Answer 8

Absorption