The Origin of Species

Authors: Charles Darwin

Key Ideas

1. Evolution by natural selection

Charles Darwin's book, The Origin of Species, introduced the concept of evolution by natural selection. This theory suggests that species evolve over time through a process of variation, inheritance, and differential survival and reproduction.

2. Variation among individuals

Darwin observed that individuals within a species exhibit variation in their traits. This variation is due to genetic differences and is essential for the process of natural selection to occur.

3. Inheritance of traits

Darwin proposed that traits are passed down from parent to offsp....
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Quiz

1. What is the main concept introduced by Charles Darwin in The Origin of Species?

Evolution by natural selection

Genetic inheritance

Extinction

Geographical distribution of species

2. What is the role of variation among individuals in the process of natural selection?

It increases competition within a population

It decreases genetic diversity

It reduces the likelihood of adaptation

It provides the raw material for natural selection

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