BIOL 1111 Chapter Notes - Chapter 30: Batesian Mimicry, Cardiac Glycoside, Herbivore
5 Oct 2016
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Document Summary
Many of the relationships we witness are products of long term evolutionary modi cation. Coevolution: genetically based reciprocal adaption in 2 or more interacting species: ecologists say it"s a race in which each species evolves adaptions that temporarily all it to outpace the other. Predation: acquire nutrients and energy by consuming other organisms. Herbivory and interaction between herbivorous animals and plants they eat. Both predators and herbivores have evolved characteristics allowing them to feed effectively. Carnivores: use sensory systems to locate animal prey. Herbivores: use sensory systems to identify preferred food or to avoid toxic food. Snakes venom made in salivary glands: contains neurotoxins that paralyze prey and protease enzymes that digest it, has mandibles. Insects: use chemical sensory on their legs and mouthparts to identify edible plans, sharp mandibles/sucking mouthparts. Specialists (everglades kites, koalas) feed on one/few types of food, generalists have broader tastes (crows)
