6.3.1 - Ecosystems Flashcards
1
Q
Define ecosystem?
A
All the living and non-living things (and the interrelationships between them) in a defined area
2
Q
Define habitat?
A
Where an organism lives
3
Q
Define population?
A
Group of organisms of the same species
4
Q
Define community
A
Group of organisms of different species
5
Q
Define niche?
A
The ‘role’/habits of an organism
For example where the organism chooses to live
6
Q
What are biotic factors - give examples?
A
Living (or once living) factors
- feeding relationships (chains/webs, producers and consumers, decomposes/detritovores)
- competition (inter and intra-specific completion)
- pathogens
7
Q
What are abiotic factors - give examples?
A
Non-living factors
- temperature
- light intensity
- oxygen + carbon dioxide concentration
- precipitation
- pH levels
- edaphic factors (factors to do with soil)
8
Q
A
