read the following statements: statement A: modern taxonomic studies are based on external and internal structure of organisms along with cell structure, development process an ecological information of organisms. statement B: neo-systematics is best upon morphological characters only.

Options

A. only statement A is incorrect
B. only statement B is incorrect
C. both statements are incorrect
D. both statements are correct

Answer

To analyze the given statements, we will evaluate each statement individually and determine their correctness.

### Step 1: Evaluate Statement A
**Statement A:** Modern taxonomic studies are based on external and internal structure of organisms along with cell structure, development process, and ecological information of organisms.

- **Analysis:**
- Modern taxonomy indeed incorporates various aspects of organisms, including their external (morphological) and internal (anatomical) structures.
- It also considers cell structure, developmental processes, and ecological information, which are crucial for understanding the relationships among different organisms.
- Therefore, Statement A is **correct**.

### Step 2: Evaluate Statement B
**Statement B:** Neo-systematics is based upon morphological characters only.

- **Analysis:**
- Neo-systematics, also known as cladistics or phylogenetic systematics, goes beyond just morphological characteristics.
- It incorporates genetic, ecological, and evolutionary information to classify organisms.
- Hence, stating that neo-systematics is based solely on morphological characters is **incorrect**.

### Conclusion
- **Statement A is correct.**
- **Statement B is incorrect.**

### Final Answer
- Statement A is true, and Statement B is false.

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