Predation

Question 1

What happens when a prey population increases?

Answer 1

Predator population will also increase
(increased food supply)

Question 2

What happens when a predator population increases?

Answer 2

• increase the mortality rate of prey
• later, population of prey drops and many predators emigrate
• predator population then decreases

Question 3

What are some examples of predator adaptations?

Answer 3

• keen eyesight
• speed
• sharp, conical teeth
• hooked beaks
• poison-injecting fangs

Question 4

What are some examples of prey adaptations?

Answer 4

• use of mimicry
• speed
• keen senses
• warning colours & patterns
• camouflage
• tough outer castings

Question 5

What does predation depend on and how does this affect population size?

Answer 5

Predation is density dependent and helps regulate population sizes

Question 6

What are the types of symbiosis?

Answer 6

• mutualism
• parasitism
• commensalism

Question 7

Why do predators have adaptations?

Answer 7

In order to catch and consume their prey

Question 8

Why do prey have adaptations?

Answer 8

In order to detect and prevent being eaten by predators