internal fertilization is seen in

Options

A. Algae
B. Amphibians
C. Fungi
D. Bony fishes

Answer

To determine which group exhibits internal fertilization, we will analyze each option provided in the question.

**Step 1: Understand Internal Fertilization**
- Internal fertilization occurs when the male gametes (sperm) are transferred into the female's body, where fertilization takes place. This is in contrast to external fertilization, where gametes are released into the environment (usually water) and fertilization occurs outside the body.

**Step 2: Analyze Each Option**
1. **Algae**:
- Algae typically reproduce through external fertilization. They release their gametes into the water, where fertilization occurs. Therefore, this option is incorrect.

2. **Amphibians**:
- Amphibians, such as frogs and salamanders, can exhibit internal fertilization, especially in certain species. In many cases, the male transfers sperm directly to the female, allowing fertilization to occur inside her body. This option is correct.

3. **Fungi**:
- Fungi reproduce primarily through external fertilization. They release spores into the environment, and fertilization occurs outside the organism. Thus, this option is incorrect.

4. **Bony Fishes**:
- Bony fishes also typically reproduce through external fertilization. They release eggs and sperm into the water, where fertilization occurs. Therefore, this option is incorrect.

**Step 3: Conclusion**
- Based on the analysis, the only group that exhibits internal fertilization is **amphibians**. Thus, the correct answer is option **2: Amphibians**.

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