Reproduction

Explanation

### Step-by-Step Text Solution for the Question: Reproduction

1. **Understanding Lifespan**:
- Lifespan refers to the duration from the birth of an organism until its natural death. Natural death is defined as death that occurs due to old age, disease, environmental factors, or internal factors.

2. **Lifespan Variation**:
- Lifespan varies among different organisms and does not solely depend on size or physiology. For example, a mango tree has a shorter lifespan compared to a peepal tree, despite both being trees.

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