Write differences between parturition and lactation.

Explanation

### Step-by-Step Solution:

1. **Definition of Parturition and Lactation**:
- **Parturition**: This refers to the process of childbirth or the act of delivering a baby. It is the final stage of pregnancy where the fetus is expelled from the uterus.
- **Lactation**: This is the process of milk production and secretion from the mammary glands after childbirth.

2. **Timing**:
- **Parturition**: Occurs at the end of pregnancy, marking the moment of birth.
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