Archaeopteryx Is a Fossil That Clearly Seems to Be an Intermediate

question 6

Multiple Choice

Archaeopteryx is a fossil that clearly seems to be an intermediate form between dinosaurs and birds. Fossils like Archaeopteryx are termed

• A) missing links.
• B) stepping stones.
• C) transitional links.
• D) intermediates.
• E) species links.

---

Definitions:

Negative Reinforcement

The removal of a stimulus to increase the probability that a behavior will be repeated.

Positive Punishment

The addition of a stimulus to decrease the probability that a behavior will recur.

Primary Reinforcement

A term in behavioral psychology that refers to something that is naturally rewarding or satisfying, like food or water, that reinforces a behavior.

Variable Interval

A schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed, used in operant conditioning.