Ecological Terms

Question 1

Biosphere

Answer 1

The part of the Earth and its atmosphere where living organisms live.

Question 2

Abiotic Factors

Answer 2

Non-living factors within an environment.

Question 3

Biotic Factors

Answer 3

An environmental factor to do with living organisms

Question 4

Ecosystem

Answer 4

The interactions between living organisms and non-living organisms

Question 5

Community

Answer 5

All the living organisms in a habitat

Question 6

Population

Answer 6

A group of individuals from the same species living within the habitat.

Question 7

Habitat

Answer 7

A particular place within an ecosystem where an organism lives.

Question 8

Anthropogenic

Answer 8

Factors arising from the activities of humans.

Question 9

Predation

Answer 9

Interaction between organism in which one kills and eats the other.

Question 10

Competition

Answer 10

Interaction between organisms which seek the same limited resources.

Question 11

Intraspecific

Answer 11

Competition between members of the same species

Question 12

Interspecific

Answer 12

Competition between members of different species.

Question 13

Niche

Answer 13

The role of a species in an ecosystem

Question 14

Adaptations

Answer 14

Any feature of the structure of physiology of an organism that makes it well suited to its environment.

Question 15

Herbivore

Answer 15

A plant eating animal.

Question 16

Carnivore

Answer 16

An animal that eats other animals

Question 17

Autotroph

Answer 17

An organism which makes complex organic molecules from simple inorganic ones.

Question 18

Heterotroph

Answer 18

An organism which uses complex organic molecules made by other living organisms as its food source.

Question 19

Density Independent

Answer 19

A factor which limits the size of a population but whose effect does not depend upon the population’s size.

Question 20

Density Dependent

Answer 20

A factor which limits the size of a population but whose effect depends upon the population’s size.

Question 21

Producer

Answer 21

The first member of a food chain which converts simple inorganic molecules into more complex ones.

Question 22

Consumer

Answer 22

Members of a food chain which uses complex organic molecules made by other living organisms.