NEET BIOLOGY

Detailed explanation-1: -Intrasexual male competition occurs when males compete with one another for access to females or resources desired by females. This competition can occur directly, such as through contests, or indirectly through several methods including sperm competition, mate guarding, endurance rivalry, and sneaky copulations.

Detailed explanation-2: -Competition between same-sex organisms, or intra-sexual selection, can occur before and after mating, and include processes such as sperm competition and cryptic female choice. One of the consequences of intra-sexual selection is that male reproductive traits tend to evolve and diverge at high rates.

Detailed explanation-3: -Intrasexual selection is not as common among females; however, there are still examples. The spotted hyena is an example where the females are larger than the males. The female hyenas within a population will fight for both mating and feeding rights.

Detailed explanation-4: -Background: Female intrasexual competition (ISC) represents a unique form of social interaction. It describes behaviors primarily applied to enhance a woman’s ability to outcompete other women. Previous research suggests that female ISC is influenced by personality characteristics and sex hormones.

Detailed explanation-5: -The prototypical example of intrasexual competition is buck deer locking horns in combat during the mating season. The winner of the bout gains the territory and access to the females within it. The loser goes home with a broken horn. This process continues year after year (Darwin, 1871).