Biodiversity And Distribution Of life-life on earth

Question 0

What is a niche?

Answer 0

The role an organism plays within a community

Question 1

What does biodiversity mean?

Answer 1

Biodiversity is the total variation that exists amongst all living things on earth

Question 2

How does over grazing affect the biodiversity of an area?

Answer 2

Over grazing can lead to plant species being destroyed, reducing the biodiversity

Question 3

How does under grazing affect the biodiversity of an area?

Answer 3

Under grazing can lead to a small number of vigorous plants becoming dominant therefore reducing biodiversity

Question 4

How does moderate grazing affect the biodiversity of an area?

Answer 4

It increases the biodiversity because faster growing plants that shade out the light are constantly held in check

Question 5

What is a stable ecosystem?

Answer 5

It contains a wide variety of species
It can exist for a very long time
It’s not affected by small changes

Question 6

What can cause loss in biodiversity?

Answer 6

• deforestation
• overfishing
• desertification
• natural disasters

Question 7

What is a biome?

Answer 7

It’s a large region of the earth distinguished from other biomes and the flora and fauna it posseses

Question 8

Give an example of a land biome and a water biome

Answer 8

Land- forests, deserts

Water- fresh water, marine