Symbiosis

The graph shows the populations of wolves and mountain lions in five different counties in Montana. Wolves and mountain lions compete for the same kinds of food resources. In Clay county,

• mountain lions depend on wolves to survive.

• mountain lions probably out-compete wolves for food.

• mountain lions and wolves have a mutualistic relationship.

• mountain lions and wolves survive independent of each other.

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Ticks feed on deer blood to the deer’s detriment.

• mutualism
• commensalism
• parasitism

Hermit crabs live in shells made and then abandoned by snails. 

• commensalism
• mutualism
• parasitism

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The stork uses its saw-like bill to cut up the dead animals it eats. As a result, the dead animals carcass is accessible to some bees for food and egg laying. 

• commensalism
• mutualism
• parasitism

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Bears and coyotes both consume large plant-eating mammals such as deer. When the deer are in short supply, bears and coyotes may fight over the prey. This type of biological interaction is called

• commensalism

• mutualism

• parasitism

• competition

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Many species of mites, such as this one, have adapted to living on the outer surface of human skin. They obtain their food by eating dead skin cells and neither harm nor benefit humans. This type of adaptation is called

• commensalism.

• mutualism.

• parasitism.

• divergent evolution.

A cuckoo may lay its eggs in a warbler’s nest. The cuckoo’s young will displace the warbler’s young and will be raised by the warbler. 

• commensalism
• mutualism
• parasitism

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The graph represents a _______________ relationship between moose and wolves.

• competitive

• mutualistic

• parasitic

• predator-prey

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Silverfish live and hunt with army ants. They share the prey. 

• commensalism
• mutualism
• parasitism

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Oxpeckers feed on ticks found on rhinos. 

• commensalism
• mutualism
• parasitism