BIOL-2706EL Study Guide - Midterm Guide: Ectotympanic, Sensory System, Homeothermy
19 Apr 2021
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Anatomy: presence or absence of structure in body. Most fundamental approach to understanding composition of body. Functional morphology: use of structures, why would a cow have 4 chambers in stomach instead of 1, (form and function) Natural selection is a motor for evolution. Studied for 5 years on the beagle. Galacapos island and then back to english. Give 3 terms that describe the relationship between 2 structures. Penguin wing looks a lot like other birds (swallow). They have a common ancestor and similar appearance but have different functions. Fish (sail fish - movement) vs reptile (visual display or thermoregulation) Organisms that have very small similar structures to other organisms but serves no function. Regressive and gradual evolutionary trend in the horse"s, equus caballus, forefoot. Based on studied ancestors, horse ancestors used to have 5 toe-like appendages on their feet. Throughout time, it regressed into 4, then 3, then eventually turned into 1 hoof on each leg.
