LIFESCI 1 Lecture Notes - Lecture 21: Trochophore, Chemosynthesis, Sexual Reproduction
Document Summary
Don"t need to read ch 45, only need to read 46: reading quiz due by friday. Live together with different morphologies and functions. The colors in the coral polyp is from the protists inside of them. Most food for the coral comes from the protists zooxanthellae. Coral bleaching: when algaes leave the coral"s" tissues. The coral loses its color and food resource. The fish is available to be protected from the anemone. The predators will get stung by the anemone. Invasive species in black sea major ecosystem impacts. Harmful to the ecosystem: population of fish completely crashed. 3) mesoderm: circulatory system, internal structures/organs, bones} diversification and larger bodies. Acoelomate: do not have a cavity outside the digestive tract. Pseudocoelomate: have a body cavity that does not completely surround the internal organs. Not all the internal organs are surrounded by mesoderm\ Coelomates: body cavity completely surrounded by mesoderm. Feeding structures (lophophores) - filter feeders with tentacle structures.
