LIFE SCIENCE

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OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Charles Darwin proposed the theory of evolution which stated that all species developed by inheriting useful variations of their ancestors, and gradually, new species were formed. After Darwin proposed this theory, the process of classifying species was modified to show the relationships among different species.According to Darwin, what was the guiding factor behind the evolution of species?
A
continent formation
B
extinction event
C
high reproduction rate
D
natural selection
Explanation: 

Detailed explanation-1: -Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin defined evolution as “descent with modification, ‘’ the idea that species change over time, give rise to new species, and share a common ancestor.

Detailed explanation-2: -He argued that natural selection explained how a wide variety of life forms developed over time from a single common ancestor.

Detailed explanation-3: -Galapagos Tortoises and Evolution While visiting the Galapagos in 1835, British naturalist Charles Darwin observed local plants and animals. He became fascinated by species that seemed related to ones found on the mainland-but that also had many physical variations unique to different islands.

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