Unformatted text preview: forms the skin of the gastrula and gives rise to the epidermis and nervous system in the adult. mesoderm (mez′-o-derm): The middle layer of the three embryonic cell layers in a gastrula; gives rise to muscles, bones, the dermis of the skin, and most other organs in the adult. larva (lar′-vuh): (plural, larvae) A free-living, sexually immature form in some animal life cycles that may differ from the adult in morphology, nutrition, and habitat. metamorphosis (met′-uh-mor′-fuh-sis): The transformation of a larva into an adult. Invertebrate: An animal that lacks a backbone....
View Full Document
- Fall '06
- Developmental Biology, Embryo, embryonic cell layers