Exam 35: Interactions among Organisms

A tapeworm is living in the intestine of a human and absorbing nutrients. The relationship is one of

The figure below shows that the cohabitating ground finches on Pinta Island experienced character displacement, with birds specializing in either smaller seeds or larger seeds. Predict the outcome of this coinhabitation if large and small seeds had not been initially available.

The relationship among plants growing in a woodland and living in high density with limited resources can best be described as

If an animal is an herbivore, does that mean it cannot have interactions with organisms other than the plants it eats?

Beech drops are plants that no longer photosynthesize. They obtain nutrition by extending their roots into a beech tree and intercepting the flow of sap. Beech drops would be considered a _______ of beech trees.

As the figure below illustrates, the distribution of numerous intertidal organisms is restricted to bands or zones. The upper limit to the zone is determined by tolerance to physical factors like desiccation while the lower boundary is determined by a biological interaction such as competition. What could account for the lower limit for Semibalanus?

Some algae and fungi live in associations known as lichens, which allow both to survive in a harsher environment than either could normally live in alone. This association is an example of

Which example best illustrates interference competition?

Pollinators carry seeds in their digestive tracts and later deposit them far from the plant that they fed on.

The terms mutualistic and symbiotic can be used interchangeably; any mutualistic relationship is an example of symbiosis while any symbiotic relationship is also mutualistic.

The bacteria in yogurt can colonize the human intestine and participate in a symbiotic relationship called ______.

What statement best describes a parasitic relationship?

An animal eats fruit from a plant and later deposits seed in its feces far from the plant. This is an example of a

The relationship between humans and domesticated livestock is

Which of the following symbols represents a mutualistic relationship?

Which of the following statements is false?

Do humans exhibit any mutualistic relationships?

Female ducks frequently deposit fertile eggs in the nests of unattended neighboring ducks. These eggs hatch and are then reared by the foster parent. What term best describes this behavior?

Which of the following statements about competition is false?

The consumer in a predator/prey interaction can be a selective force in the evolution of the prey species.