What are the major features of embryonic development at the By the end of second month of pregnancy?

Explanation

### Step-by-Step Solution:

1. **Understanding the Timeline**: By the end of the second month of pregnancy, which corresponds to the end of the eighth week, significant embryonic development has occurred. This period is crucial as it marks the transition from the embryonic stage to the fetal stage.

2. **Development of Limbs**: One of the major features of embryonic development during this time is the formation of limbs. By the end of the second month, the arms and legs begin to take shape, and the basic structure of the hands and feet is established.

3. **Formation of Digits**: Along with the limbs, the digits (fingers and toes) are also developing. By this stage, the fingers and toes are beginning to form, although they may still be webbed and not fully separated.

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