Branching descent is one of the key concepts of

Options

A. Lamarckian theory
B. Miller, s theory
C. The Big Bang theory
D. Darwinian theory

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks about the concept of "branching descent" and which theory it is associated with.

2. **Analyzing the Options:**
- **Lamarckian Theory:** This theory focuses on the inheritance of acquired characteristics, which does not relate to branching descent.
- **Miller's Theory:** This theory pertains to the origin of life and is not directly related to evolutionary concepts like branching descent.
- **Big Bang Theory:** This theory explains the origin of the universe and does not involve biological evolution or branching descent.
- **Darwinian Theory:** This theory is fundamentally about evolution and includes the concept of branching descent, which describes how new species evolve from a common ancestor.

3. **Identifying the Correct Answer:** Since "branching descent" is a key concept in the theory of evolution proposed by Charles Darwin, the correct answer is **Darwinian Theory**.

4. **Explaining the Concepts:**
- **Branching Descent:** This refers to the process by which new species originate from a single common ancestor, illustrating the tree-like structure of evolutionary relationships.
- **Natural Selection:** This is the mechanism by which organisms that are better adapted to their environment tend to survive and reproduce, leading to the gradual evolution of species.

5. **Conclusion:** The correct option for the question is **Darwinian Theory** as it encompasses the concept of branching descent.

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