Gimnasio Campestre - Biological Interactions

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1. Which of the following statements about symbiotic relationships is true?

In a parasitic relationship, both organisms are harmed

Symbiotic organisms have usually undergone little or no coevolution

A relationship that appears to be commensalistic may in fact be mutualistic or parasitic

The most efficient type of parasite is one that kills its host

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Gimnasio Campestre - Biological Interactions - Quiz

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2. Of the following types of interactions, which one is least likely to limit population size?

Predation

Commensalism

Competition

Brood parasitism

3. Parasitism, once considered a symbiotic relationship, is now considered a form of predation

True

False

4. The realized niche of an organism is:

The area a species can occupy in the face of exploitive competition

The habitat of a species within a community resulting from clumping

The habitat that exists in nature as opposed to the ideal

The life pattern that the organism actually assumes

5. Studies on Isle Royale show that wolves play a determining role in controlling the moose population

True

False

6. Which of the following is not an example of symbiosis?

Monarch butterflies

Lichens

Mycorrhizae

Tapeworms and humans

Clownfish and sea anemones

7. Match the following

Bacteria live in cows’ stomachs, where they break down the cellulose in the grass that cows eat. The bacteria get food from the cellulose, and the cows get food from the bacteria.

A group of tomato plants planted close together in a garden shade one another with their leaves.

Barnacles grow on the sides of whales. As whales swim through the ocean, the barnacles are carried through nutrient-rich water. The barnacles don’t hurt or help the whales.

A dog remains very thin despite eating plenty of food because it has a tapeworm living in its intestines. The tapeworm receives nutrients from the dog’s food.