130 Lecture Notes - Lecture 14: Symmetry In Biology, Choanocyte, Pinacoderm
11 Nov 2016
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Document Summary
Steria has lots of productivity, shallow and warm water. Continents that are close to the equator are generalized to ideally have more productivity. No life on when pacific plate clashes with the north american continent creates mountains. Some groups do not have any tissues. Multicellular eukaryotes: ingestive heterotrophs, cells with different functions, choanocytes, collagen. Are the sponges in terms of function. Progress of tissue, this animals have no cell site communication. Can open and close diameter in order to regulate the entrance and exit of fluid. The semi fluid that surrounds the sponge. Throw their gymate out into the ocean, hopes an egg will catch it and become fertilized. This sperm is going to be trapped into the amoebocyte, and then will be transferred to the egg. Signal that is receive in development, all of a sudden the cells purificate. Animals start to move in one direction. Need to react in a 360 manner.
