Convergent evolution is illustrated by

Options

A. Rat and Dog
B. Bacterium ad protozoan
C. Star fish and Cuttle fish
D. Dog fish and Whale

Answer

**Step-by-Step Text Solution:**

1. **Understanding Evolution**: Evolution is defined as the gradual changes that occur in organisms over time. It is a continuous process that affects the diversity of life on Earth.

2. **Types of Evolution**: There are two main types of evolution: convergent evolution and divergent evolution.

3. **Convergent Evolution**: Convergent evolution refers to the process where organisms from different evolutionary backgrounds develop similar traits or characteristics. This occurs despite having different ancestral origins.

4. **Divergent Evolution**: In contrast, divergent evolution involves species that share a common ancestor but develop different traits over time.

5. **Examples of Convergent Evolution**: A classic example of convergent evolution includes the dog, fish, and whale.
- **Dog**: A terrestrial mammal.
- **Fish**: An aquatic organism belonging to the class Pisces.
- **Whale**: A mammal that has adapted to live in aquatic environments.

6. **Analysis of the Example**: Although the dog, fish, and whale have different ancestral origins (dog is a mammal, fish is a different class, and whale is also a mammal), they have developed similar adaptations for living in an aquatic environment. This illustrates convergent evolution.

7. **Conclusion**: Therefore, convergent evolution is illustrated by the example of the dog, fish, and whale.

**Final Answer**: Convergent evolution is illustrated by the dog, fish, and whale.

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