Group amniota includes:-

Options

A. Birds and mammals
B. Birds and reptiles
C. Mammals and reptiles
D. Reptiles, birds and mammals

Answer

To determine which groups are included in the category of Amniota, we can follow these steps:

### Step 1: Understand the Definition of Amniota
Amniota is a clade of vertebrates that are characterized by the presence of an amnion during embryonic development. The amnion is a membrane that surrounds and protects the embryo.

### Step 2: Identify the Major Groups within Amniota
The major groups that fall under Amniota include:
- Reptiles
- Birds
- Mammals

### Step 3: Analyze the Given Options
Now, let's analyze the provided options:
1. **Birds and Mammals** - This option is incomplete as it does not include reptiles.
2. **Birds and Reptiles** - This option is also incomplete as it does not include mammals.
3. **Mammals and Reptiles** - This option is incomplete as it does not include birds.
4. **Reptiles, Birds, and Mammals** - This option includes all three major groups of Amniota.

### Step 4: Select the Correct Answer
Based on the analysis, the correct answer is:
**Reptiles, Birds, and Mammals** (Option 4).

### Conclusion
The group Amniota includes reptiles, birds, and mammals, as all these groups have embryos that develop in an amnion.

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