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In the Sonoran Desert of the Southwestern United States, Scientists

question 34

Multiple Choice

In the Sonoran desert of the southwestern United States, scientists observed that population clusters of a small cactus were very pronounced around nests of desert woodrats. They began to think the woodrat was somehow connected to the seeding of these cactus plants.After years of counting and observing the woodrat nests and cactus plants, they collected the droppings of the woodrats and took them back to the lab to analyze them to see if they contained seeds of the cactus. They also collected the droppings and transported them to other areas to see if this would bring about new population clusters of the cactus.They also programmed the data they had collected into a computer. The computer program allowed the scientists to predict that increases in the woodrat population would result in increases in the cactus population, and likewise a decrease in woodrats would signal an impending decrease in cactus.
-Which of the following best describes the scientists' initial observations?

Definitions:

Social Rewards

Benefits that individuals receive from interacting with others, including acceptance, support, and validation.

Subgenual Cingulate

A brain structure whose abnormal activity has been linked to depression. Also called Brodmann Area 25.

Depression-Related

Pertaining to symptoms, conditions, or factors associated with or resulting from depression, a mood disorder characterized by persistent feelings of sadness and loss of interest.

Brain Circuit

A network of particular brain structures that work together, triggering each other into action to produce a distinct kind of behavioral, cognitive, or emotional reaction.