Differentiate between Darwinism and neo-Darwinism

Explanation

### Step-by-Step Solution

1. **Definition of Darwinism**:
- Darwinism refers to the original theory of evolution proposed by Charles Darwin. It emphasizes the process of natural selection as the primary mechanism of evolution, where organisms that are better adapted to their environment tend to survive and reproduce more successfully than others.

2. **Definition of Neo-Darwinism**:
- Neo-Darwinism, also known as the modern synthesis, is an updated version of Darwin's theory. It incorporates genetic principles and acknowledges the role of mutations and genetic variation in the process of evolution, alongside natural selection.

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