BIOL 11100 Study Guide - Midterm Guide: Epiglottis, Boron, Crop Yield
24 Aug 2016
School
Department
Course
Professor
Document Summary
Behavior: individual behavior- action carried out by muscles under control of nervous system, essential for acquiring nutrients, reproduction, and homeostasis, natural selection shapes behaviors and influences animal anatomy. Skeletal muscle- moves individual bones and whole body. Made of bundles of long cells (fibers) parallel to length of muscle. Inside each cell/fiber is longitudinal bundle of myofibrils. Myofibrils made of repeating sections called sarcomeres (contractile) Both forms pattern of light and dark bands called striations. Thin filaments- made of globular protein actin (two stands coiled around each other) Thick filaments- staggered arrays of myosin molecules. Can create action potential without input from neurons. Allometric scaling (endoskeleton only: how characteristics of animals disproportionally change with size. Not all body parts scale at the same rate: morphological- ex. leg size b/w antelope and elephants, physiological- ex. metabolism b/w mice and elephants, ecological- ex. relationship b/w wing size and flight performance in bats.
