11:216:269 Lecture Notes - Lecture 7: Anti-Predator Adaptation, Paramecium, Animal
27 Nov 2017
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Counter-clockwise move backwards: coordinated movements, cilia: have to be coordinated in a regular pattern (i. e. , coordinated feeding behaviors. Amoeba - chase down bacteria, surround it, eat it: habituation: animals stop responding to repetitive stimuli, complex trophic relationships, food webs: plants herbivores predators b) In protozoa: bacteria bacteriovores predators: major groups of animal models, charismatic animals (ex. dolphins, lions, elephants, humans, birds, rodents (ex. lab rats, primates. Approaches to studying animal behavior: hares have large ears - anti-predator defense can better hear predators, giraffes, competitors = other hares (conspecifics, selective force = fox (predators, why do they have long necks? . Sexual selection necks: males compete for females by bashing each other with their long, females prefer male giraffes with longer necks, males with longer necks have high fitness, more progeny, approches, observation, chimpanzees. Fed aspalia plant to babies; would come out undigested. Worms would come out: experimental, direct method (ex. peppered moth, empirical falsification (ex. tadpoles)
