Question

9 8 points Use the word bank below to complete the following sentence(s). Please note that not all terms in the word bank will be used. The two major anatomical trends found unique to the genus Homo are Answer and Answer These trends appear related primarily to Answer and Answer culturally adapting to the environment brains getting larger becoming bipedal teeth getting larger; Jaws getting smaller teeth and jaws getting smaller teeth and jaws getting larger reduced predation risk thermoregulation tool use eating hard plant material eating other hominins eating meat

Answer 1

The two major anatomical treands found unique to the genus homo are 1) brain getting large and 2) becoming bipedal . These trend appear primarily related to 3) reduce predation risk and 4)tool use .

Brain size is increased during evolution of human , initially they faces competition for food , shelter etc with another animal , due to the development of many center , like center for smell , center for test , cent for proprioception etc , the brain regions undergoes expansion . The larger brain better cognitive performance.the larger brain would offer a heigher survival potential.

When Human started bipedal movement , his upper limbs free to do other functions, they use upper limbs to carry tools, protect himself from the attact of wild animals , start holding things and work , in human evolution fist homo habilis is the first man who made tool for hunting animals, hence homo habilis are also called as first tool maker man or handyman.