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Subject Test Biology

Question 3 of 5

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SAT Subject Test

Which of the following individuals is most fit in evolutionary terms?

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A child who does not become infected with any of the usual childhood diseases, such as measles or chicken pox

Correct Answer: 
No

A woman of 40 with seven adult offspring

Correct Answer: 
Yes

A woman of 80 who has one adult offspring

Correct Answer: 
No

A 100-year-old man with no offspring

Correct Answer: 
No

A childless man who can run a mile in less than five minutes

Correct Answer: 
No

In evolutionary terms, fitness refers to an organism’s ability to leave offspring in the next generation that survive to pass on genetic traits. The woman of 40 with 7 adult offspring has left the most surviving offspring and is the most fit evolutionarily.

Question Difficulty: 
medium