There Is Evidence That Polar Bears Are More Frequently Reported

question 57

Multiple Choice

There is evidence that polar bears are more frequently reported encountering humans and visiting human settlements. What is the most likely explanation for this behavior?

• A) Because conservation efforts have been so successful, polar bear populations are increasing so much that they are expanding their range.
• B) Because they have less ice on which to hunt and have trouble finding prey, polar bears must search for food in other places.
• C) Excessive hunting is causing polar bears to leave their normal habitat.
• D) The seals that polar bears eat must have moved into human settlements first.
• E) There is a decreasing polar bear population, so this must be a result of mistaken identification of other species.

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Definitions:

Occipital Lobe

is the region of the brain located at the back of the head, responsible for processing visual information.

Pupils

The opening in the center of the iris of the eye, which regulates the amount of light that enters the eye.

Rods

Rod-shaped photoreceptors that are sensitive only to the intensity of light.

Feature Detectors

Neurons in the sensory cortex that fire in response to specific features of sensory information such as lines or edges of objects.