Biology Topic Practice

Darwin's Theory of Evolution

Charles Darwin proposed the theory of evolution by natural selection to explain the diversity of life on Earth.

What is the title of Darwin's famous book published in 1859?

What is Darwin's Theory of Evolution?

"Evolution by natural selection is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits."

Question 1

How many times does the cell divide during meiosis?

Question 2

Why is understanding the human genome important for modern medicine?

Question 3

Which group belongs to the domain Archaea rather than true bacteria?

Question 4

If both parents are heterozygous (Bb) for a recessive trait (b), what is the probability their child will express the trait?

Natural Selection

Individuals within a species show a wide range of variation for a characteristic.

Individuals with characteristics most suited to the environment are more likely to survive.

The genes for these characteristics are passed on to the next generation.

Exam Tip

Darwin published his ideas in "On the Origin of Species" in 1859, but it took a long time to be accepted because it challenged existing beliefs.

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