NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Evolution can best be described as which type of change?
A
absolute change
B
extreme change
C
gradual change
D
None of the above
Explanation: 

Detailed explanation-1: -Evolution is the sequence of gradual changes, which take place in primitive organisms over millions of years, due to which new species are formed.

Detailed explanation-2: -Evolution is a gradual and continuing process of change that occurs over a period of time, due to slight variations in genetic compositions as well as changes in environment, leading to formation of new species.

Detailed explanation-3: -Evolution is the change in inherited characteristics or traits in a population of organisms over many generations. The mechanism that best explains evolution is a phenomenon known as natural selection.

Detailed explanation-4: -Charles Darwin understood that evolution was a slow and gradual process. By gradual, Darwin did not mean “perfectly smooth, ” but rather, “stepwise, ” with a species evolving and accumulating small variations over long periods of time until a new species was born.

Detailed explanation-5: -Individual organisms can evolve during a single lifespan. Evolution only occurs slowly and gradually. Because evolution is slow, humans cannot influence it.

There is 1 question to complete.