BIO120H1 Chapter Chapters 1-9: Why Evolution is True

• School: UTSG
• Department: Biology
• Course: BIO120H1
• Professor: Doug Thomson

Document Summary

Dis(cid:272)usses te(cid:396)(cid:373) (cid:862)s(cid:272)ie(cid:374)tifi(cid:272) theo(cid:396)(cid:455)(cid:863) (cid:894)(cid:373)ust (cid:271)e testa(cid:271)le + (cid:373)ake (cid:448)e(cid:396)ifia(cid:271)le p(cid:396)edi(cid:272)tio(cid:374)s) Pale(cid:455)"s a(cid:396)gu(cid:373)e(cid:374)t: god (cid:272)(cid:396)eated (cid:374)atu(cid:396)e a(cid:374)d e(cid:448)e(cid:396)(cid:455)thi(cid:374)g i(cid:374) it. Da(cid:396)(cid:449)i(cid:374)"s a(cid:396)gu(cid:373)e(cid:374)t: adaptatio(cid:374)s a(cid:396)e e(cid:448)e(cid:396)(cid:455)(cid:449)he(cid:396)e, (cid:449)e e(cid:448)ol(cid:448)ed. First to use evidence to convince ppl evolution was true. Life on earth evolved gradually from one primitive species, branched out over time, threw off many new + diverse species, & the mechanism for almost all evolutionary change is natural selection. The 6 tenets to the evolutionary process: evolution, gradualism, speciation, common ancestry, natural selection, nonselective mechanisms of evolutionary change, evolution. Mutations in dna cause species to evolve over generations. All species evolve, but at different rates. (cid:862)the theo(cid:396)(cid:455) of e(cid:448)olutio(cid:374) does (cid:374)ot p(cid:396)edi(cid:272)t that spe(cid:272)ies (cid:449)ill (cid:272)o(cid:374)sta(cid:374)tl(cid:455) (cid:271)e e(cid:448)ol(cid:448)i(cid:374)g, o(cid:396) ho(cid:449) fast the(cid:455)"ll (cid:272)ha(cid:374)ge (cid:449)he(cid:374) the(cid:455) do. That depends on the evolutio(cid:374)a(cid:396)(cid:455) p(cid:396)essu(cid:396)es the(cid:455) e(cid:454)pe(cid:396)ie(cid:374)(cid:272)e. (cid:862: gradualism. It takes many generations to produce a substantial evolutionary change. A single species evolves faster/slower as evolutionary pressures vary.