LIFE SCIENCE

Detailed explanation-1: -The pelvis and thigh bones (outline to right) of Homo erectus are similar to modern humans, and show that this early human was able to walk long distances. That ability was a big advantage during this time period.

Detailed explanation-2: -Answer and Explanation: Early hominid groups shared the characteristic of bipedalism, the ability to walk erect on two legs. Early hominid groups evolved on the continent of Africa approximately two-million-years-ago and from there evolved into modern Homo Sapiens Sapiens and migrated to other parts of the world.

Detailed explanation-3: -Although the earliest hominids were capable of upright walking, they probably didn’t get around exactly as we do today. They retained primitive features-such as long, curved fingers and toes as well as longer arms and shorter legs-that indicate they spent time in trees.

Detailed explanation-4: -Bipedalism allowed hominids to free their arms completely, enabling them to make and use tools efficiently, stretch for fruit in trees and use their hands for social display and communication.