Which of the following is an example for link species?

Options

A. Lobe fish
B. Dodo bird
C. Sea weed
D. Chimpanzee

Answer

**Step-by-Step Solution:**

1. **Understand the Concept of Link Species:**
- A link species is an organism that connects two different groups in the evolutionary tree, showing a common ancestor and helping to illustrate the evolutionary transition from one group to another.

2. **Analyze the Options Given:**
- Option A: Lobefish
- Option B: Dodo Bird
- Option C: Seaweed
- Option D: Chimpanzee

3. **Evaluate Each Option:**
- **Lobefish:** Known to have stout and strong fins, lobefish are believed to have existed around 350 million years ago. They are considered a link between fish and the first amphibians, as they could move on land and return to water.
- **Dodo Bird:** This species is extinct and was a flightless bird. It does not serve as a link between groups.
- **Seaweed:** A multicellular marine algae that does not connect different animal groups in an evolutionary context.
- **Chimpanzee:** While they are closely related to humans, they do not serve as a link species between two distinct groups.

4. **Identify the Correct Answer:**
- The lobefish is the correct answer as it serves as a link species between fish and amphibians, illustrating the evolutionary transition.

5. **Conclusion:**
- The example of a link species from the options provided is the lobefish.

**Final Answer: Lobefish (Option A)**

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