With the Entry of Humans into the Americas Some 30,000

question 1

Multiple Choice

With the entry of humans into the Americas some 30,000 years ago

• A)animals became more numerous.
• B)small animals were able to feed off of the seeds that the humans brought.
• C)many large animals were hunted into extinction.
• D)there was no significant change in wildlife at this time.

---

Definitions:

Extinction

In psychology, the process through which a previously reinforced behavior is weakened by the removal or absence of reinforcement.

Conditioned Taste Aversion

An acquired response where an individual avoids consuming a certain food or drink because it has been associated with an unpleasant outcome, such as nausea or sickness.

Evolutionary Theory

A scientific explanation for the diversity of life, proposing that species change over time through natural selection and genetic variation.

Associative Learning

A learning process by which a connection or association is made between two stimuli or between a behavior and a stimulus.