D. A small male will do better mating at sea when suitable beaches are more common than are large, dominant males.
When small males are relatively abundant then would a male be expected to improve his fitness by attempting to mate at sea rather than establishing a harem.
The ability of an organism to reach reproductive age, find a mate, and give birth is referred to as biological fitness, sometimes known as Darwinian fitness. In essence, the number of offspring an organism has over the course of its lifespan determines its biological fitness.
Harem- A group of animals known as a harem consists of one or more males, several females, and the offspring of those females. The dominant male drives away other men and maintains the group together.
The given question is incomplete, the complete question is,
Q. When would a make be expected to improve his fitness by attempting to mate at sea rather than establishing a harem.?
A. A large, competitively dominant male will do better matting at sea when small males are relatively abundant.
B. A large, competitively dominant male will do better matting at sea when suitable beaches are more common than are large, dominant males.
C. A small male will do better mating at sea when suitable beaches are rare and successfully defended by large males.
D. A small male will do better mating at sea when suitable beaches are more common than are large, dominant males.
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