BSC 2011 Lecture Notes - Lecture 13: Basal Metabolic Rate, Cellular Respiration, Epithelium
28 Oct 2016
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Which of these traits first arose in animal evolution: answer: cells that are specialized into different tissues. Seen in the split on the phylogeny between the sponges and eumetazoans who developed two germ layers (endoderm and ectoderm) Animals need to eat to obtain: answer: all of the above. Animal division of labor, and each cell must make their own atp. Animals vary in form, but all must take in nutrients and oxygen, and must eliminate the waste products of metabolism. Groups of tissues make organs: the collection of different tissues allows an organ to carry out a specific function. Groups of organs make up organ systems: multiple organs that work together for a common function, types of organ systems: Tissues, organs, and organ systems must coordinate with each other to operate in sync to (cid:373)eet the (cid:374)eeds of a (cid:271)ody"s (cid:272)ells. The primary need of organisms is energy in the form of atp: cellular respiration.
