Function of amnion in birds is
(a) Nutrition
(b) Excretion
(c) Protection
(d) None

Options

A. Nutrition
B. Excretion
C. Protection
D. None

Answer

To determine the function of the amnion in birds, let's analyze the options provided step by step.

### Step 1: Understand what the amnion is
The amnion is an extra embryonic membrane that surrounds the embryo in birds. It forms a protective sac.

**Hint:** Think about the structure of the amnion and its role in embryonic development.

### Step 2: Identify the primary function of the amnion
The primary function of the amnion is to provide protection to the developing embryo. It creates a fluid-filled cavity that cushions the embryo.

**Hint:** Consider what kind of environment the amnion creates for the embryo.

### Step 3: Evaluate the options
- **(a) Nutrition**: The amnion does not provide nutrition to the embryo; that role is fulfilled by the yolk.
- **(b) Excretion**: The amnion is not involved in excretion.
- **(c) Protection**: This aligns with the known function of the amnion, as it protects the embryo from physical shocks and helps maintain a stable environment.
- **(d) None**: This option is incorrect since the amnion does have a function.

**Hint:** Eliminate options that do not align with the known functions of the amnion.

### Step 4: Conclusion
Based on the analysis, the correct answer is (c) Protection. The amnion primarily serves to protect the developing embryo in birds.

**Final Answer:** (c) Protection