Ecology Of Species Interactions 4

Question 1

Müllerian mimicry differs from Batesian mimicry in that Müllerian mimics are:

Accepted Answer

All unpalatable species sharing a warning pattern

Answer

In Müllerian mimicry, multiple genuinely unpalatable species converge on the same warning coloration, reinforcing predator avoidance.

Question 2

Which of the following is an example of a keystone predator effect?

Accepted Answer

Wolves causing elk to avoid riverbanks, allowing riparian vegetation to recover

Answer

Wolves in Yellowstone exemplify a keystone predator by triggering a trophic cascade that altered plant communities and stream morphology.

Question 3

A cleaner wrasse fish removes parasites from larger 'client' fish without being eaten. This best represents:

Accepted Answer

Mutualism

Answer

Cleaner fish and client fish engage in mutualism: the cleaner gets food and the client has parasites removed, benefiting both.

Question 4

Allelopathy is a form of species interaction in which:

Accepted Answer

One plant releases chemicals that inhibit growth of neighboring plants

Answer

Allelopathy involves the release of phytotoxic chemicals by a plant that suppress the germination or growth of competitor plants.

Question 5

Frequency-dependent selection in the context of predator–prey interactions means:

Accepted Answer

Rare prey morphs are favored because predators develop a 'search image' for common morphs

Answer

Negative frequency-dependent selection protects rare morphs because predators form search images for the most common form, leaving rare variants at an advantage.

Ecology Practice Test

Ecology Practice Test

Ecology Of Species Interactions 4