BSC 1011L- Midterm Exam Guide - Comprehensive Notes for the exam ( 52 pages long!)
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The next transition of the development of a head creating this group. Tetrapods jawed vertebrates with two pairs of limbs. Tetrapods with a terrestrially adapted egg, completed with transition to land. Hagfish defense mechanism produce slime as an antipredator defense. Lampreys characteristics are parasites that penetrate the sides of fishes with their rasping tongues. Amphibians were the first tetrapods to colonize land. Phylogenetic tree shows that all primates are divided into three groups. The organ that provides nourishment, immune protection, and oxygen to the embryo. Attaches to the embryo and helps support it. This is where the developing offspring will get its nourishment. Produces the embryos first blood cells and its first germ cells. Small but forms part of the umbilical cord and part of the embryos urinary bladder. Chorion (outermost extraembryonic membrane) completely surrounds the embryo and other extraembryonic membranes. A hormone that is secreted by cells in the chorion. Associated with blood vessels of the mothers endometrium.
