Which one is correct ?

Options

A. Anatomy - Internal morphology, study of internal structure
B. Tissue - Agroup of cells having a common origin and usually performing a common function
C. Permanent tissue has more power of mitosis
D. a and b

Answer

**Step-by-Step Solution:**

1. **Understanding Anatomy and Morphology:**
- Anatomy refers to the internal structure of an organism, while morphology pertains to the external appearance. Therefore, the statement that defines anatomy as the study of internal structures is correct.

2. **Defining Tissue:**
- Tissue is defined as a group of cells that share a common origin and perform a common function. This definition is accurate, as tissues are formed when cells differentiate to fulfill specific roles.

3. **Types of Tissues:**
- There are two main types of tissues: meristematic and permanent. Meristematic tissues are capable of active mitosis (cell division), while permanent tissues generally lose their ability to divide and do not undergo mitosis.

4. **Identifying the Incorrect Statement:**
- The statement regarding permanent tissues having more power of mitosis is incorrect. Instead, permanent tissues reduce their capacity for division and do not perform mitosis.

5. **Conclusion:**
- The correct options are those that accurately define anatomy and tissue, as well as the characteristics of permanent and meristematic tissues. Therefore, the answer is option 4, which states that both A and B are correct.