Which one is connective tissue ?

Options

A. Neuron
B. Nephrons
C. Islet of Langerhans
D. Blood.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks to identify which option represents connective tissue among the given choices.

2. **Analyzing the Options**:
- **Option 1: Neuron**: Neurons are nerve cells that are part of the nervous system. Their primary function is to transmit impulses. They are not classified as connective tissue.
- **Option 2: Nephron**: Nephrons are the functional units of the kidneys, responsible for filtering blood. They are not connective tissue.
- **Option 3: Islets of Langerhans**: These are specialized cells in the pancreas that produce insulin. They are part of the endocrine system and not connective tissue.
- **Option 4: Blood**: Blood is a fluid connective tissue. It has a matrix (plasma) and serves various functions, including transportation of oxygen and nutrients, and removal of waste products.

3. **Identifying the Correct Answer**: After analyzing all the options, it is clear that blood is the only option that qualifies as connective tissue.

4. **Conclusion**: The correct answer to the question "Which one is connective tissue?" is **blood**.

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