CAS BI 107- Midterm Exam Guide - Comprehensive Notes for the exam ( 297 pages long!)
12 Oct 2017
School
Department
Course
Professor
Document Summary
Fossil hominids from south africa-the cradle of mankind. Biological group include humans, human-like animals (gorilla, chimps, orang-utans, our ancestors) Sterkfontein richest hominid fossil site-world heritage site known as cradle of mankind. Cold be because depression in ground people pushed-mud slide. Ge(cid:374)etic e(cid:448)ide(cid:374)ce (cid:894)(cid:373)itocho(cid:374)drial dna through (cid:373)other"s li(cid:374)e(cid:895) Morphological alterations arrangement and size of bones, hip size and shape, knee size, leg length and shape/orientation of vertebral column. Flatter face-less sloping forehead, small eyebrow ridges (usually absent), less protruding jaw, more developed chin, more rounded jaw, change in dentition. Free arms completely (use/make tools more efficiently, stretch fruit, pick fruit, seeds in trees, use hands social display communication) See further over savannah grass (better nutrition) however more easily seen by predators. Foraging/scavenging out in open savannah bodies exposed less sunlight (better temperature control) More energy efficient walk on two legs-energy reproducing. Large brain outcome substantial energy saving development ie:bipedalism. Bipedalism change energy/fat allocation in body-additional energy brain.
