Biology 91-106

Question 1

A group of individuals that belong to the same species and live in the same area

Answer 1

Population

Question 2

Two or more different populations that live in a defined area.

Answer 2

Community

Question 3

A collection of all organisms that live in a particular place, together with their non­living environment.

Answer 3

Ecosystem

Question 4

A group of ecosystems that have the same climate and dominant organisms.

Answer 4

Biome

Question 5

An organism that can make its own food internally.

Answer 5

Autotrophs

Question 6

An organism that relies on other organisms for energy and food supply.

Answer 6

Heterotrophs

Question 7

A series of steps in which organisms transfer energy by eating or being eaten.

Answer 7

Food chain

Question 8

Links all the food chains in an ecosystem together.

Answer 8

Food web

Question 9

A cycle by which materials necessary for organisms are circulated between organisms and through the environment. (e.g. water, carbon, nitrogen)

Answer 9

Biogeochemical Cycle

Question 10

​The state of environmental conditions.

Answer 10

Environmental Quality

Question 11

The evaporation of water from the leaves of plants.

Answer 11

Transpiration

Question 12

The conversion of nitrogen gas into ammonia by bacteria living in the soil.

Answer 12

Nitrogen Fixation

Question 13

Any relationship in which two species live together.

Answer 13

Symbiosis

Question 14

A symbiotic relationship in which both species benefit.

Answer 14

Mutualism

Question 15

A symbiotic relationship in which one organism lives on or inside another organism and causes it no harm.

Answer 15

Commensalism

Question 16

A symbiotic relationship in which one organism lives on or inside another organism and harms it.

Answer 16

Parasitism