FNR 24150 Study Guide - Midterm Guide: Placenta, Tapetum Lucidum, Oophagy
16 Oct 2017
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Receptor cells that fire in response to weak electrical field. Make it possible for rays to bury themselves in the sediment and still breathe. Group of fish gathered together for social reasons and more organized than a shoal. Group of fish gathered together for social reasons: 25% of species for most of their lives, 50% of species for part of their lives, open water = most common. Rods: low light, black and white, all fish, more rods than cones. Cones: high light, colors and some uv, not all fish. Producing young by means of eggs that are hatched after they have been laid by the parent. Eggs hatched inside the body of the parent. Live birth young developed inside the body of the parent. Born in freshwater > sea as juveniles to grow > return to freshwater to spawn. Born in saltwater > freshwater as juveniles to grow > return to saltwater to spawn.
