Animals giving birth to young ones are

Options

A. Oviparous
B. Viviparous
C. Ovoviviparous
D. both (a) and (c)

Answer

To answer the question "Animals giving birth to young ones are:", we need to understand the terms related to reproduction in animals. Here’s a step-by-step explanation:

### Step 1: Understand the terms
- **Oviparous**: These are animals that lay eggs. The young ones develop outside the mother's body.
- **Viviparous**: These are animals that give birth to live young ones. The young ones develop inside the mother’s body.
- **Ovoviviparous**: These animals produce eggs that hatch inside the mother’s body, and the young are born live, but they do not have a placenta.
- **Both**: This option suggests that both oviparous and viviparous animals give birth to young ones.

### Step 2: Identify the correct term
The question specifically asks for animals that give birth to young ones. Among the options:
- Oviparous animals do not give birth to live young; they lay eggs.
- Viviparous animals give birth to fully developed young ones, which is what the question is asking.
- Ovoviviparous animals also do not fit the description as they do not have a placenta for development.
- The option "both" is incorrect since it includes oviparous animals.

### Step 3: Conclusion
Based on the definitions and the context of the question, the correct answer is **viviparous** animals, as they are the ones that give birth to fully developed young ones.

### Final Answer
Animals giving birth to young ones are called **viviparous**.

---