Bio 201 F11 Lect 18 (True) v2r

Bio 201 F11 Lect 18 (True) v2r -...

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Biology in the News [see folder on BB] it had long been thought that humans, having high longevity rela:ve to other primates, age less quickly than other animals new research on primates seems to be overturning this idea most mammals, unlike humans, do not live long past their reproduc:ve years data from primates was lacking un:l recently data from 7 primate species± capuchin monkeys (Costa Rica), muriqui monkeys (Brazil), baboons, (Kenya), blue monkeys (Kenya), chimpanzees (Tanzania), gorillas (Rwanda), and sifaka lemurs (Madagascar) from almost 3000 individuals found that human aging rates are in the middle of the primate range also, it was found in these other primates, like in humans, that males die sooner than females ("mortality gap") species with less male‐male aggression have smaller mortality gaps between the sexes stresses of male‐male compe::on appears to be the best general explana:on for the mortality gap maximum lifespan, which humans can change through medical interven:on, is a separate ques:on warran:ng further research h²p±//www.nsf.gov/news/news_summ.jsp? cntn_id=118917&WT.mc_id=USNSF_51&WT.mc_ev=click h²p±//www.sciencemag.org/content/331/6022/1325/ F1.large.jpg
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Insect development some have direct development some indirect many different varieties This is considered a form of direct development (almost completely direct development except for the wings, which develop late and appear following the final molt) [an example of an ‘exopterygote’ – wings developing outside the body]
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Holometabolus - complete metamorphosis
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Insects: success on land Insect exoskeleton, tracheal system, Malpighian tubules (concentrate wastes to preserve water) are all key adapta±ons for a terrestrial lifestyle Associa±ons with plants were the catalysts
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This note was uploaded on 12/16/2011 for the course BIO 201 taught by Professor True during the Fall '08 term at SUNY Stony Brook.

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Bio 201 F11 Lect 18 (True) v2r -...

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