Direct development

Source: Wikipedia, the free encyclopedia.

Direct development is a concept in biology. It refers to forms of growth to adulthood that do not involve metamorphosis. An animal undergoes direct development if the immature organism resembles a small adult rather than having a distinct larval form.[1] A frog that hatches out of its egg as a small frog undergoes direct development. A frog that hatches out of its egg as a tadpole does not.

Direct development is the opposite of

cocoon, between its larval and adult stages.[2]

Examples

References

  1. . Retrieved March 7, 2023.
  2. .
  3. ^ Scott F. Gilbert (2000). "Metamorphosis: The Hormonal Reactivation of Development". Developmental Biology (6 ed.). Sunderland, MA: Sinauer Associates. Retrieved March 19, 2023.