Ecosystem and Distribution Flashcards
Memorize
1
Q
Range of species which exists within an ecosystem
A
Biodiversity
2
Q
where organisms live
A
Habitat
3
Q
Total number of one type of organisms in an ecosystem
A
population
4
Q
all the living things in an ecosystem
A
community
5
Q
role of an organism plays in the ecosystem
A
niche
6
Q
interaction between living and non-living parts of the ecosystem
A
ecosystem
7
Q
factors affecting the distribution of species
A
- food
2. human interaction
8
Q
abiotic factors
A
- pH
- carbon dioxide
- light intensity
- temperature
- rainfall
- air humidity
9
Q
biotic factors
A
- disease
- competition
- availability
- grazing
10
Q
a small representative part of the complete habitat
A
sample
11
Q
examples of valid samples
A
- several samples
- samples must be random
- samples must be taken by identical apparatus
12
Q
limitations of using quadrat
A
- careful swing
13
Q
ways to reduce errors of using quadrat
A
- place quadrat randomly
14
Q
sources of errors using pitfall traps
A
!. few samples
- animals drown
- animals avoid it
- carnivores eat other animals
15
Q
ways that errors can be reduced (pitfall trap)
A
- Many samples
- Holes to escape
- camouflage
