Question

Q. Read the following statements and

justify same in your own words with
the help of suitable examples.

a. Human evolution began approximately 7 crore years ago.​

Answer 1

Answer:

Approximately around 7 crore years back the ice age began on the earth. In such conditions, dinosaurs became extinct. The monkey like ancestors gave rise to two evolutionary links to apes and human like animals.

The dinosaurs became extinct around 7 crore years ago and from that point human evolution began. Humans are thought to have evolved from monkey like animals which looked more or less like modern lemurs. These monkey like animals further evolved into ape like animals. Some of these ape like animals evolved into gibbon and orangutan while rest of them evolved into gorilla and chimpanzees.From their evolved, the first human like animal called Ramapethicus. Speciation may be defined as an evolutionary process, which involves the formation of one or more species from an existing species.