Ecology

Question 1

Niche

Answer 1

An organisms particular role in an ecosystem

Question 2

Trophic level

Answer 2

Hierarchical levels in an ecosystem

Question 3

Food chain

Answer 3

Link species by their feeding relationships, one-way flow of energy

Question 4

Food web

Answer 4

Network of complex interactions formed by the feeding relationships among the various organisms

Question 5

10% rule

Answer 5

Only 10% of the total energy produced by each trophic level is available to the next level

Question 6

Detritivore

Answer 6

Organism that feeds on plant and animal remains, and other dead matter

Question 7

Decomposer

Answer 7

An organism that breaks down waste and dead organisms

Question 8

Symbiosis

Answer 8

Roxy, close relationship between two species that benefits at least one of the species

Question 9

Mutualism

Answer 9

Relationship between two species, in which both species benefit

Question 10

Parasitism

Answer 10

Relationship between two organisms, where one benefits, and the other is harmed

Question 11

Commensalism

Answer 11

A relationship between two organisms in which one organism benefits, and the others unaffected

Question 12

Evolutionary fitness

Answer 12

An organisms ability to pass its genetic material to its offspring

Question 13

Caring capacity

Answer 13

Largest number of individuals and environment can support

Question 14

Ecological succession

Answer 14

Gradual change in living communities that follow the disturbance

Question 15

Primary succession

Answer 15

Succession that occurs on services were no soil exists

Question 16

Secondary succession

Answer 16

Succession, following at a disturbance that destroys

Question 17

Climax community

Answer 17

A stable, mature community, that undergoes little or no change in species overtime

Question 18

Pioneer species

Answer 18

First species to populate an area during primary succession

Question 19

Carbon cycle

Answer 19

Transfer of carbon from the atmosphere to the living organisms and return back to the atmosphere through cell respiration

Question 20

Water cycle

Answer 20

How water evaporates rises, cools, and condenses into rain or snow in clouds, and falls back to earth

Question 21

Nitrogen cycle

Answer 21

Transfer of nitrogen from the atmosphere to the soil to living organisms and back to the atmosphere

Question 22

Decomposition

Answer 22

Breaking down dead, and decaying plants and animals

Question 23

Nitrogen, fixation

Answer 23

Process of converting nitrogen, gas into ammonia

Question 24

Nitrification

Answer 24

Process of converting ammonia into nitrates

Question 25

Assimilation

Answer 25

Plants, uptake, nitrate, or ammonium from soil

Question 26

Denitrification

Answer 26

Process of converting nitrates into nitrogen gas

Question 27

Ammonification

Answer 27

Process of converting dead material into ammonia