Ecosystems

Question 1

What is biosphere

Answer 1

Biosphere is part of atmosphere and Earth inhabited by living things.

Question 2

What is an ecosystem

Answer 2

An ecosystem is a community of organisms interacting with each other and with environment.
All biotic and abiotic parts of an area and how they interact.

Question 3

What are abiotic factors examples

Answer 3

Examples of abiotic factors are
Topography (gradient of surface)
Climate 
Pollution
Solar energy

Question 4

Examples of biotic factors

Answer 4

Examples of biotic factors are
Mutualism (where both partners benefit)
Interspecific and intraspecific competition
Predation, parasitism, disease relationships where 1 organism benefits at the others expense

Question 5

What are anthropogenic factors

Answer 5

Anthropogenic factors are factors affected by humans.

Question 6

What is density dependent

Answer 6

Density dependent is when a factor is affected by size of population e.g disease, predation - biotic factors are usually density dependent

Question 7

What is a habitat

Answer 7

Habitat is distinct set of conditions where an organism lives.

Question 8

What are edaphic factors

Answer 8

Edaphic factors are connected with soil e.g soil pH and mineral content, soil texture

Question 9

What is a catastrophe

Answer 9

A catastrophe is an abiotic factor, they are infrequent events that disturb conditions considerably e.g flood, volcanic eruption

Question 10

What is topography

Answer 10

Topography is characteristics of physical environment e.g aspect (direction facing),slope