130 Study Guide - Final Guide: Yolk Sac, Marine Reptile, Alpha Helix

• School: Athabasca University
• Department: Biology
• Course: 130
• Professor: Jonhouseman

Document Summary

Egg white, or the protein contained in it. Are a clade of tetrapod vertebrates comprising the reptiles, birds, and mammals that lay their eggs on land or retain the fertilized egg within the mother. In an amniote egg, an extraembryonic membrane sac that fills much of the space between the chorion and the yolk sac and stores the embryo"s nitrogenous wastes. 2 : the cell in the center of the archegonium whose division produces the egg and usually also the ventral canal cell (as in cycads) The reproductive organ of a flower that houses an ovule and its associated structures. The evolution of genetically based, reciprocal adaptations in two or more species that interact closely in the same ecological setting. Denoting the last period of the mesozoic era, between the. The cretaceous period or the system of rocks deposited during it.