Which of the following is not viviparous

Options

A. Mole
B. Platypus
C. Kangaroo
D. Shrew.

Answer

To determine which of the following organisms is not viviparous, we need to understand what viviparous means. Viviparous organisms are those that give birth to live young rather than laying eggs.

Here’s a step-by-step solution:

1. **Understand Viviparous**: Viviparous refers to organisms that give birth to live young. This is in contrast to oviparous organisms, which lay eggs.

2. **Analyze the Options**:
- **Option 1: Mole** - Moles are mammals that give birth to live young, so they are viviparous.
- **Option 2: Platypus** - The platypus is a unique mammal that lays eggs instead of giving birth to live young. Therefore, it is not viviparous.
- **Option 3: Kangaroo** - Kangaroos are also viviparous, as they give birth to live young.
- **Option 4: Shrew** - Shrews are mammals that give birth to live young, making them viviparous as well.

3. **Identify the Non-Viviparous Organism**: From the analysis, the only organism that does not give birth to live young is the platypus (Option 2).

4. **Conclusion**: The correct answer to the question "Which of the following is not viviparous?" is **Option 2: Platypus**.