Predation Flashcards
1
Q
What happens when a prey population increases?
A
Predator population will also increase
(increased food supply)
2
Q
What happens when a predator population increases?
A
- increase the mortality rate of prey
- later, population of prey drops and many predators emigrate
- predator population then decreases
3
Q
What are some examples of predator adaptations?
A
- keen eyesight
- speed
- sharp, conical teeth
- hooked beaks
- poison-injecting fangs
4
Q
What are some examples of prey adaptations?
A
- use of mimicry
- speed
- keen senses
- warning colours & patterns
- camouflage
- tough outer castings
5
Q
What does predation depend on and how does this affect population size?
A
Predation is density dependent and helps regulate population sizes
6
Q
What are the types of symbiosis?
A
- mutualism
- parasitism
- commensalism
7
Q
Why do predators have adaptations?
A
In order to catch and consume their prey
8
Q
Why do prey have adaptations?
A
In order to detect and prevent being eaten by predators
9
Q
A
