Question

In certain species of salamanders, male-female pairs have multiple mating partners in a breeding season. Which one of the following terminologies accurately describes this mating system?

• A. ( Monogamy )
• B. ( Polyandry )
• C. ( Polygyny )
• D. ( Polygynandry )

Hint:

Understanding different mating systems is crucial in the study of evolutionary biology and ecology, as it helps explain the reproductive strategies and social structures of various species.

Answer 1

The Correct Option is D

To understand the mating systems referred to in the options, we must define each term: 
(A) Monogamy: Involves one male mating exclusively with one female. Not applicable here as multiple partners are involved.
(B) Polyandry: A pattern where one female mates with multiple males but does not describe multiple males mating with multiple females. 
(C) Polygyny: Describes a scenario where one male mates with multiple females but does not include females having multiple mates. 
(D) Polygynandry: Correct. This term describes a mating system where multiple males mate with multiple females. It best matches the scenario described for the salamanders, where male-female pairs have multiple mating partners. Conclusion:
Explanation: Polygynandry fits the described salamander mating behavior where both males and females may have multiple partners during the breeding season. This system allows for a high genetic diversity within the offspring, which can be advantageous in varying environmental conditions.