Which of the Following Is NOT Key Evidence for a Large

question 30

Multiple Choice

Which of the following is NOT key evidence for a large meteorite impact striking the Earth approximately 65 million years ago?

• A) tiny particles of glass called microtektites
• B) "shocked quartz" grains, with fine parallel planes caused by a burst of intense pressure
• C) the disappearance of many taxa of large reptiles beginning about 70 million years ago
• D) a worldwide layer of sediments highly enriched in the element iridium
• E) gravity anomalies that allow us to map the now-buried meteorite crater

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Definitions:

Latent Learning

Learning that occurs without any obvious reinforcement and is not demonstrated until there is an incentive to perform.

Insight Learning

A cognitive process where an individual suddenly realizes how to solve a problem without trial-and-error, often seen as a form of intuitive understanding.

Punishment By Removal

The punishment of a response by the removal of a pleasurable stimulus.

Negative Reinforcement

A response or behavior is strengthened by stopping, removing, or avoiding a negative outcome or aversive stimulus.