natural selection

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Inside cells, many variations of DNA, RNA, and proteins arise, and natural selection favors the organisms that function most effectively.

From Science Daily

That was assumed to be the result of a natural selection.

From Barron's

Evolution occurs through random variation and natural selection: The strong survive and reproduce; the weak perish.

From The Wall Street Journal

Under this view, mutations are usually neither helpful nor harmful, allowing them to spread quietly without being strongly favored or rejected by natural selection.

From Science Daily

That excess became smaller in older, more common variants, indicating that natural selection gradually removes these mutations.

From Science Daily