Biology Dictionary

  • Holophytic

    Holophytic

    Referring to organisms that obtain their nutrition from photosynthesis, like plants and certain algae.

  • Holozoic

    Holozoic

    Referring to organisms that obtain their nutrition by ingesting complex organic materials, such as animals.

  • Homeobox

    Homeobox

    A DNA sequence that codes for transcription factors involved in regulating the development of specific regions in an organism’s body.

  • Homeostasis

    Homeostasis

    The process by which organisms maintain a stable internal environment despite external changes, such as temperature regulation.

  • Homeotherms

    Homeotherms

    Organisms that maintain a constant body temperature regardless of external environmental conditions, such as mammals and birds.

  • Homeotic gene

    Homeotic gene

    A gene that controls the development of body structures in organisms, determining the identity and positioning of body parts.

  • Homeotic mutation

    Homeotic mutation

    A mutation that results in the transformation of one body part into another, typically due to changes in homeotic genes.

  • Hominid

    Hominid

    A member of the biological family Hominidae, which includes modern humans, their ancestors, and great apes like chimpanzees, gorillas, and orangutans.

  • Hominidae

    Hominidae

    The biological family that includes humans, great apes, and their immediate ancestors.

  • Hominids

    Hominids

    Members of the family Hominidae, including all modern and extinct great apes and humans.