Semelparity is

Options

A. Development of adult organs in larva
B. One time reproduction in life
C. Repeated reproduction at intervals
D. Production of a feq offspring at one time.

Answer

**Step-by-Step Solution:**

1. **Understanding Semelparity**: Semelparity refers to a reproductive strategy in which an organism reproduces only once in its lifetime. This is a key characteristic that differentiates it from other reproductive strategies.

2. **Analyzing the Options**:
- **Option 1**: "Development of adult organs in larva" - This describes a process related to ontogeny (developmental biology), not reproduction. Therefore, this option is incorrect.
- **Option 2**: "One time reproduction in life" - This directly aligns with the definition of semelparity, making this option correct.
- **Option 3**: "Repeated reproduction at intervals" - This describes iteroparity, which is the opposite of semelparity. Thus, this option is incorrect.
- **Option 4**: "Production of frequency of swimming at one time" - This option does not relate to reproduction and is also incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer is **Option 2: one time reproduction in life**.

**Final Answer**: Semelparity is one time reproduction in life.

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