Life On Earth Definitions

Question 1

Ecosystem

Answer 1

An ecosystem consists of all the living organisms living in a particular habitat and the non-living components with which the organisms interact.

Question 2

Biome

Answer 2

Biomes are regions of our planet which have similar flora, fauna and climate, the distribution of biomes depended on factors such as temperature and rainfall.

Question 3

Biotic factor

Answer 3

A biotic factor is a living component which can affect the organisms which can live within the ecosystem; and so affect biodiversity.

Question 4

Abiotic factor

Answer 4

An abiotic factor is a non-living component which can affect the organisms which can live within the ecosystem; and so affect biodiversity.

Question 5

Niche

Answer 5

A niche is a role an organism plays within a community.

Question 6

Population

Answer 6

A group of organisms of the same species found in an ecosystem.

Question 7

Community

Answer 7

All the plants, animals and microorganism that can live in an ecosystem.

Question 8

Habitats

Answer 8

The places where organisms live:

Question 9

Food chain

Answer 9

A food chain is a diagram which shows the movement of energy between organisms in an ecosystem.

Question 10

Producers

Answer 10

Producers are organisms can make their own food for energy by photosynthesis.

Question 11

Consumers

Answer 11

Consumers are organisms that get their energy by eating other organisms. They can be secondary or tertiary.

Question 12

Biodiversity

Answer 12

Biodiversity can be described in terms of the different number of species, genes and ecosystems in a region.