Question

For evolution, the most important requirement is

• A. Variations
• B. Adaptation
• C. Natural selection
• D. Developmental anatomy

Answer 1

The correct option is A

Variations

The correct option is A:

Explanation of the correct option :

Though the individuals of a population share some common features they differ from one another in numerous ways. Variation causes evolution if it passes to the next generation.

Explanation of the incorrect option:

Option B:

Adaptation is the process of changing to better suit a situation but adaptation is not the most important requirement for evolution.

Option C:

1. Natural selection is a mechanism of evolution.
2. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success.
3. But natural selection is not the most important requirement for evolution.

Option D:

Developmental anatomy is the branch of anatomy that studies the structural changes of an individual from fertilization to maturity.

Final answer: For evolution, the most essential requirement is variations.