Select the correct statements :-

Options

A. The process of development of embryo from the zygote is called embryogenesis
B. Animals may be either oviparous or viviparous
C. Embryonal protection and case are better in viviparous organisms
D. All of the above

Answer

To determine the correct statements from the question, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement 1: The process of development of embryo from the zygote is called embryogenesis.**
- **Analysis:** This statement is correct. The zygote, which is a diploid (2n) cell formed by the fusion of male and female gametes, undergoes a series of developmental stages to form an embryo. This entire process is indeed referred to as embryogenesis.

2. **Statement 2: Animals may be either oviparous or viviparous.**
- **Analysis:** This statement is also correct. Oviparous animals lay eggs (e.g., birds, reptiles), while viviparous animals give birth to live young (e.g., mammals). Therefore, this classification of animals is accurate.

3. **Statement 3: Embryonal protection and care are better in viviparous organisms.**
- **Analysis:** This statement is correct as well. In viviparous organisms, the embryo develops inside the mother's body, providing it with protection and a stable environment for growth. This is in contrast to oviparous organisms, where the embryo develops outside the mother's body in eggs.

4. **Conclusion:**
- Since all three statements have been verified as correct, the final answer is that all of the statements are correct. Therefore, the correct answer is **D: All of the above.**