LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

DIVERSITY AMONG LIFE FORMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The theory of evolution by natural selection means that what is changing over time?
A
The inherited traits of a population.
B
The acquired traits of a population.
C
Hair color and eye color
D
Attractive features.
Explanation: 

Detailed explanation-1: -This means that if an environment changes, the traits that enhance survival in that environment will also gradually change, or evolve. Natural selection was such a powerful idea in explaining the evolution of life that it became established as a scientific theory.

Detailed explanation-2: -The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct 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.

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