Co-evolution

Question 1

What is co-evolution?

Answer 1

Is the process by which two or more species evolve in response to selection pressures imposed by each other

Question 2

What is classed as a selection pressure?

Answer 2

A change in traits of one species effects the other.

Question 3

Symbiosis

Answer 3

Co-evolved intimate relationships between members of two different species.

Question 4

The impacts on species can be _____, ______ or _____

Answer 4

Positive (+)
Negative (-)
Neutral (0)

Question 5

Mutualism (0)

Answer 5

Both organisms in the interaction are interdependent on each other for the resources or other services. As both organisms gain from the relationship, (+,+)

Question 6

Commensalism

Answer 6

Only one of the organisms benefit (0)

Question 7

Parasitism

Answer 7

The parasitism benefits in terms of energy or nutrients and the host is harmed as the result of the loss of these resources (+,-)

Question 8

The Red Queen Hypothesis

Answer 8

In a co-evolutionary relationship, change in the traits of one species can act as a selection pressure on the other species.

This mean that species in these relationships must adapt to avoid extinction.