Key definitions

Question 1

Ecosystem

Answer 1

All the interacting living organisms and the non-living conditions in an area

Question 2

Niche

Answer 2

The role and position a species has in its environment;
how it meets its needs for food and shelter
how it survives
how it reproduces.
A species’ niche includes all of its interactions with the biotic and abiotic factors of its environment.

Question 3

Community

Answer 3

All the populations of living organisms in a particular habitat

Question 4

Population

Answer 4

All of the organisms of the same species living in the same place at the same time that can breed together

Question 5

Productivity

Answer 5

The rate at which energy passes through each trophic level of the food chain