24.3 Predator-Prey Relationships

Question 1

What is predation

Answer 1

where an organism kills and eats another organism (prey)

Question 2

What type of competition is predation

Answer 2

interspecific

Question 3

Explain the 4 stages of the predator-prey relationship graph?

Answer 3

STAGE 1-
an increase in prey population = more food for the predators = more survive and reproduce = increased predator population
STAGE 2-
increased predators = more prey eaten = decline in prey population = date rate is higher than birth rate
STAGE 3-
reduced prey can no longer support large predator population = instraspecific competition for food = decrease in predator population
STAGE 4-
reduced predator number = less prey killed = more prey can survive and reproduce = increased prey population

Question 4

What part of the population growth curve does the predator-prey relationship graph represent?

Answer 4

carrying capacity (fluctuations)

Question 5

What adaptations do prey adopt?

Answer 5

-camouflage
-minimcry
-eyes at side of head
-hunt in packs
-warning/danger colours
-eyes at front of head
-sharp claws/teeth/hooked beak
-excellent scences
-swim/run/fly fast
-spines