In these animals, the female retain the eggs inside its body after fertillisation and allows the development of embryo inside the body without providing extra nourishment ot the developing embryo as the placenta is absent. Such animlas are called as

Options

A. oviparous animals
B. viviparous animals
C. ovoviviparous animals
D. none of these.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question describes a specific reproductive strategy in animals where the female retains fertilized eggs inside her body, allowing the embryo to develop without providing additional nourishment.

2. **Identifying Key Terms**:
- **Fertilization**: The process where male and female gametes unite.
- **Embryo Development**: The growth of the fertilized egg into an embryo.
- **Nourishment**: The provision of nutrients to support the embryo's growth.
- **Placenta**: An organ that provides nutrients and oxygen to the developing embryo in viviparous animals.

3. **Types of Reproductive Strategies**:
- **Oviparous**: Animals that lay eggs outside the body after fertilization. The development occurs outside, and there is no nourishment from the mother.
- **Viviparous**: Animals that give birth to live young after the embryo develops inside the mother with the aid of a placenta, which provides nourishment.
- **Ovoviviparous**: Animals that retain eggs inside their body after fertilization, allowing the embryo to develop inside without a placenta, meaning no additional nourishment is provided by the mother.

4. **Analyzing the Options**:
- **Oviparous**: Incorrect, as these animals lay eggs outside the body.
- **Viviparous**: Incorrect, as these animals provide nourishment through a placenta.
- **Ovoviviparous**: Correct, as these animals retain eggs and allow development without providing extra nourishment.
- **None of these**: Incorrect, as there is a suitable option.

5. **Conclusion**: Based on the definitions and characteristics of the reproductive strategies, the correct answer is **ovoviviparous animals**.

**Final Answer**: Ovoviviparous animals.

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