Question

The evolution of man was possible because our ape-like ancestors
A. Showed bipedal movement on open land
B. Used fire
C. Had difficulty in gaining nutrition
D. Developed community hunting

Answer 1

The long process of change by which people originated from apelike ancestors is called human evolution. Scientific evidence reveals that the behavioral and physical traits that all people share originated from apelike ancestors and evolved over six million years ago. The first humans originated in Africa around two million years ago. Charles Darwin is the father of evolution.

Complete answer:
1. Man evolution was possible as our ape-like ancestors showed bipedal movement on open land.
2. A bipedal movement is a form of terrestrial locomotion in which an organism moves through its two rear limbs or legs.
3. The greatest merit of bipedal movement is forearmed becoming free for carrying out the order of the brain. It raises the head also, that allows a greater field of vision with improved detection of distant resources or dangers and access to deeper water for wading animals.
4. Bipedal movement allows animals to reach higher food sources with their mouths.
5. The use of fire was invented by Homo erectus ancestors of humans.
6. Community hunting was developed among the early hominins of Africa.

Hence, the correct answer is option (A).

Additional information:
1. Evolution is the outcome of the interaction between five processes they are:
2. Mutation
3. Genetic Recombination
4. Chromosomal Abnormalities
5. Reproductive isolation
6. Natural Selection
7. The earliest hominin of primitive bipedalism is considered either Sahelanthropus or Orrorin, both of which originated 6 to 7 million years ago

Note: Human evolution is a long term process of change by which people originated from apelike ancestors. Man evolution was possible as our ape-like ancestors showed bipedal movement on open land. The separation of humans from their common ancestors and chimpanzees is characterized by several developmental, morphological, physiological, and behavioral changes. The most important of these adaptations are bipedalism, decreased sexual dimorphism, increased brain size, and lengthened ontogeny.