Psychology 3720F/G Lecture Notes - Lecture 2: Grouper, Reciprocal Altruism, Wrasse

• School: Western University
• Department: Psychology
• Course: Psychology 3720F/G
• Professor: katz

Document Summary

The origin of species: evolutionary biology: the doctrine of spontaneous generation. Species spontaneously appear in fully developed form from non-living matter. Such as how adam came from the dust of the ea(cid:396)th a(cid:374)d e(cid:448)e (cid:272)a(cid:373)e f(cid:396)o(cid:373) ada(cid:373)"s (cid:396)i(cid:271) Scientists believed this up until the late 1700s: 1809: lamarck. There is an historical continuity in development later species replace earlier species. The doctrine of evolution: how does evolution occur. Acquired characteristics: from use and non-use of body parts (if a body part (cid:449)as(cid:374)"t used, it (cid:449)ould dege(cid:374)e(cid:396)ate a(cid:374)d disappea(cid:396) (cid:271)ut if a (cid:271)od(cid:455) pa(cid:396)t (cid:449)as used extensively, it would grow bigger) These acquired characteristics are inherited and passed onto offspring. E. g. a short necked animal evolves into a giraffe because it has to reach higher and higher for leaves as it eats them. Problem: characteristics are acquired, but they are not passed onto future generations.