Bio ch 34 terms 1

Bio ch 34 terms 1 - amniotic egg A shelled egg in which an...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Acanthodian (ak'-an-tho´-de-un) Any of a group of ancient jawed aquatic vertebrates from the Devonian period. Amnion (am´-ne-on) One of four extraembryonic membranes. It surrounds a fluid-filled cavity that cushions the embryo. Amniote (am'-ne-ot) Member of a clade of tetrapods named for a key derived character, the amniotic egg, which contains specialized membranes, including the fluid-filled amnion, that protect the embryo. Amniotes include mammals as well as birds and other reptiles.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: amniotic egg A shelled egg in which an embryo develops within a fluid-filled amniotic sac and is nourished by yolk. Produced by reptiles (including birds) and egg-laying mammals, it enables them to complete their life cycles on dry land. Amphibian Member of the tetrapod class Amphibia, including salamanders, frogs, and caecilians. Anthropoid (an-thruh-poyd) Member of a primate group made up of the monkeys and the apes (gibbons, orangutans, gorillas, chimpanzees, bonobos, and...
View Full Document

This note was uploaded on 04/28/2011 for the course BIO V23.0012 taught by Professor Borowsky during the Spring '10 term at NYU.

Ask a homework question - tutors are online