w11 90-100

Question 1

species

Answer 1

A group of organisms so similar to one another that they can breed and produce fertile offspring.

Question 2

population

Answer 2

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

Question 3

community

Answer 3

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

Question 4

ecosystem

Answer 4

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

Question 5

biome

Answer 5

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

Question 6

autotrophs (producer)

Answer 6

An organism that can make its own food internally.

Question 7

heterotroph (consumer)

Answer 7

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

Question 8

food chain

Answer 8

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

Question 9

food web

Answer 9

­ Links all the food chains in an ecosystem together.

Question 10

biogeochemical cycle

Answer 10

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