In relation to natural selection, which of the following birds would be considered to be...
BIOLOGY
SAT 2021
In relation to natural selection, which of the following birds would be considered to be the most fit?
- A. A male with a genetic defect that prevents him from reproducing
- B. A female that hatched and successfully raised a daughter
- C. A young female that lays 3 eggs, all of which are eaten by a predator
- D. A deceased male that had successfully mated with multiple females, resulting in healthy offspring
Correct Answer: D. A deceased male that had successfully mated with multiple females, resulting in healthy offspring
Explanation
In biology, fitness measures the ability of an organism to reproduce and pass on its alleles and traits to future generations. An organism is considered more fit if many of its offspring survive and manage to reproduce, which creates more and more copies of the organism's original alleles. In this case, the deceased male still managed to pass on the most alleles since he has multiple offspring carrying his genetic information when compared to the other birds.
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