dimorphism

Examples of dimorphism in the following topics:

• Sexual Selection

  • These differences are called sexual dimorphisms and arise from the variation in male reproductive success.
  • Sexual dimorphism varies widely among species; some species are even sex-role reversed.
  • Discuss the effects of sexual dimorphism on the reproductive potential of an organism

• Phylum Rotifera

  • Rotifers are dioecious organisms (having either male or female genitalia) and exhibit sexual dimorphism (males and females have different forms).

• Early Hominins

  • For example, sexual dimorphism was more exaggerated than in modern humans.

• Genus Homo

  • Its degree of sexual dimorphism was less than earlier species, with males being 20 to 30 percent larger than females, which is close to the size difference seen in our species.

• Characteristics and Evolution of Primates

  • The very arboreal gibbons are smaller than the great apes; they have low sexual dimorphism (that is, the genders are not markedly different in size); and they have relatively longer arms used for swinging/brachiating through trees.

• Fungi Cell Structure and Function

  • Dimorphic fungi can change from the unicellular to multicellular state depending on environmental conditions.

• Fungi as Plant, Animal, and Human Pathogens

  • Histoplasmosis is caused by the dimorphic fungus Histoplasma capsulatum.

• Phylum Nemertea

  • Animals in phylum Nemertea show sexual dimorphism, although freshwater species may be hermaphroditic.

• Phylum Echinodermata

  • Echinoderms are sexually dimorphic and release their eggs and sperm cells into water; fertilization is external.

• Classification of Phylum Mollusca

  • Sexual dimorphism is seen in this class of animals.