Exam 27: Community Interactions

How may a predator use mimicry to its own advantage?

In mutualistic interactions, one species is harmed and one benefits. True or False?

The productivity of an ecosystem usually ________ through succession.

If similar species each occupy a smaller niche when they live together than they would if they lived alone, they are said to be:

Woodpeckers and squirrels both nest in tree cavities. This is an example of interspecific competition. True or False?

A lichen is a mutualistic relationship between a fungus and an alga. True or False?

Fleas feed on the blood of dogs, cats, and people. What is this ecological relationship called?

What effect does coevolution most likely have on niche overlap?

Parasites are generally smaller than their host. True or False?

What distinguishes predators from parasites?

In the Australian outback, emus feeding in the open brush lands resemble the bushes. This is an example of:

The seadragon in the illustration displays:

Clownfish live within the tentacles of sea anemones. The anemone protects the fish from predators, and the clownfish cleans the anemone. This relationship is an example of:

Many plants are mycorrhizal: Their roots are infected with a specialized fungus. The plant supplies carbon to the fungus, and the fungus supplies nutrients to the plant. The relationship between these plants and the mycorrhizal fungi is an example of a ________ association.

The next time you need to mow the grass, you can excuse yourself, saying that by mowing you are helping to maintain a man-made:

Parasites kill their hosts, but predators do not. True or False?

The Masai people of Africa regularly consume the blood and milk of their cattle. Based on this information alone, we might classify the relationship between the Masai and cattle as:

Parasitism is a relationship in which one species benefits and one species is harmed. True or False?

One of the major factors limiting the size of a population is intraspecific competition. True or False?

A predator might use ________ to enable it to catch its prey.