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Flashcards in Population size Deck (6)
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1

Define population

a group of organisms of one species, living in the same area at the same time

2

State the factors affecting the rate of population
growth for a population of an organism

- Competition
- Human/Animals: food, space, predation, diseases
- Plants: light, oxygen, carbon dioxide

3

Lag phase

Increases slowly.
- Organisms start to adapt
- Doubling has little effect as numbers are so small

4

Exponential

Increases rapidly
- No limiting factor

5

Stationary

Remains constant
- Limiting factors because of competition
- Build up of toxic waste

6

Death

Decreases
- Death rates > birth rates