Connective tissue is –

Options

A. Ectodermal in origin without intercellular spaces
B. Mesodermal in origin without intercellular spaces
C. Ectodermal in origin with intercellular spaces
D. Mesodermal in origin with intercellular spaces

Answer

### Step-by-Step Solution:

1. **Understanding Connective Tissue**:
- Connective tissue is one of the four basic types of tissues in animals, alongside epithelial, muscular, and nervous tissues. It is the most abundant and widely distributed tissue in the animal body.

2. **Embryonic Origin**:
- Connective tissue originates from the mesoderm layer of the embryo. This is important because it helps to identify the correct option regarding its origin.

3. **Components of Connective Tissue**:
- Connective tissue consists of three main components:
- **Fibers**: These can be collagen fibers or elastic fibers.
- **Ground Substance (Matrix)**: This is primarily made up of water, carbohydrates, and various proteins.
- **Cells**: Various types of cells are present, including fibroblasts, adipocytes, macrophages, mast cells, and leukocytes.

4. **Function of Connective Tissue**:
- The primary functions of connective tissue include connecting organs, providing support, and serving as a medium for nutrient and waste exchange.

5. **Evaluating the Options**:
- The options provided are:
- A) Ectodermal in origin without intracellular spaces
- B) Mesodermal in origin without intracellular spaces
- C) Ectodermal in origin with intracellular spaces
- D) Mesodermal in origin with intracellular spaces
- Since we established that connective tissue is mesodermal in origin and contains intracellular spaces filled with fibers, the correct answer is option D.

### Final Answer:
**Connective tissue is mesodermal in origin with intracellular spaces. (Option D)**

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