If Estimates of an Extinction Rate of 1% Per Year

question 79

Multiple Choice

If estimates of an extinction rate of 1% per year are correct, what percentage of all species will be extinct by the end of this century?

• A)10%
• B)25%
• C)33%
• D)50%
• E)66%

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Definitions:

Facial Feedback Hypothesis

The Facial Feedback Hypothesis suggests that facial movements can influence emotional experiences, implying that smiling can make one feel happier, while frowning can lead to sadness.

Smiling

A facial expression denoting pleasure, favor, or amusement, but can also be a voluntary or involuntary response to social interactions.

Mood

A temporary state of mind or feeling that can vary from happiness to sadness, which affects a person's emotional state but is less intense than emotions.

Cognitive Arousal Theory

A theory suggesting that arousal in the cognitive system can affect emotions and motivation.