2c: Co-evolution

Question 1

Co-evolution definition

Answer 1

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

Question 2

A change in the traits of one species acts as a ______________ on the other species

Answer 2

selection pressure

Question 3

Symbiosis definition.

Answer 3

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

Question 4

Co-evolution is frequently seen in species that have __________

Answer 4

symbiotic relationships

Question 5

types of symbiotic interactions

Answer 5

Mutualism (+/+) , commensalism (+/0), and parasitism (+/-)

Question 6

Mutualism definition

Answer 6

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

Question 7

Commensalism definition

Answer 7

only one of the organisms benefits (+/0)

Question 8

Parasitism definition

Answer 8

the parasite benefits in terms of energy or nutrients and the host
is harmed as the result of the loss of these resources (+/-).

Question 9

The Red Queen hypothesis states that

Answer 9

in a co-evolutionary relationship, change in the traits of one species can act as a selection pressure on the other species.
This means that species in these relationships must adapt to avoid extinction.