Chapter 3.1 Biodiversity and the distribution of life Flashcards Preview

FULL COURSE National 5 Biology > Chapter 3.1 Biodiversity and the distribution of life > Flashcards

Flashcards in Chapter 3.1 Biodiversity and the distribution of life Deck (8):
1

Biodiversity in ecosystems is affected by

abiotic and biotic factors

2

Abiotic factors are

physical factors and inculde temperature and pH

3

Biotic factors are

related directly to living organisms and include factors such as grazing and predation

4

Humans can influence biodiversity in ecosystems through creation of

pollution, habitat destruction and over exploitation of species.

5

A biome is a

geographical region of the planet that is characterized by its climate and contains distinctive communities of plants (flora) and animals Fauna).

6

The global occurrence of particular biomes depends

on the physical characteristics of the area including the climatic factors of temperature and precipitation.

7

An ecosystem is the

community of organisms living in a habitat and their interactions with the non-living components of the system.

8

A niche is the

position occupied by an organism and the role it plays within its community.