UCONN Biology 1108 exam 3. Top Class A.

Fertilization takes place inside the body of the female. Considered an adaption for land animals R-Strategists organisms that produce large numbers of offspring without a lot of parental investment. Mainly found in unstable changing environments. K-Strategists organisms that produce few offspring but put in a lot of parental investment. Mainly found in stable environments where there is lots of competition. Amnion a membrane surrounding a fluid filled cavity that allows the embryo to develop in a watery environment. Huge impact on animals abilities to reproduce w/o water. Allantois Encloses a space within the egg where metabolic waste collects Chorion surrounds the entire embryo along with its yolk and allantoic sac. Limits water loss and allows has exchange within environment. Cleavage First set of mitotic division after fertilization of zygote. Single large egg divides into many smaller cells. Morula A solid ball of cells that results from cleavage Blastula