Which of the following is not under Darwin's theory of natural selection? (a) Over production (b

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Which of the following is not under Darwin's theory of...

Key Concepts

Struggle for Existence

The struggle for existence describes the intense competition among individuals for limited resources such as food, shelter, and mates. This competition is a necessary condition for natural selection, as it ensures that only those with traits best suited to the environment are able to contribute to the next generation.

Variation

Variation refers to the differences in traits among individuals within a population. While variation is a critical component of natural selection, Darwin's theory does not explain the causes of this variation. Instead, it assumes variation already exists, and natural selection acts upon it to drive evolutionary change.

Survival of the Fittest

The concept of survival of the fittest encapsulates the idea that individuals best adapted to their environment are more likely to survive and reproduce. It is a central element of natural selection, describing how advantageous traits become more common over generations.

Overproduction

Overproduction refers to the phenomenon where organisms produce more offspring than can possibly survive, given the limited availability of resources. This creates a competitive environment that is essential for natural selection, as it forces a struggle for survival among offspring.

Natural Selection

Natural selection is the process by which individuals with advantageous traits are more likely to survive and reproduce in a given environment. This fundamental mechanism of evolution explains how species adapt over time by selectively passing traits that offer survival benefits to subsequent generations.

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