Sets of reproductive terms are given below. Choose the set that has an incorrect combination.

Options

A. sperm, testis, sperm duct, penis
B. menstruation, egg, oviduct, uterus
C. sperm, oviduct, egg, uterus
D. ovulation, egg, oviduct, uterus

Answer

To solve the question of identifying the incorrect combination of reproductive terms, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Sperm**: Male reproductive cell.
- **Testis**: Male reproductive organ that produces sperm and testosterone.
- **Sperm Duct (Ductus Deferens)**: Tube that carries sperm from the testis to the outside of the body.
- **Penis**: Male genital organ.

2. **Analyze the First Option**:
- The first set includes:
- Sperm (male reproductive cell)
- Testis (male reproductive organ)
- Sperm Duct (transports sperm)
- Penis (male genital organ)
- All terms in this set are correctly associated with male reproduction.

3. **Analyze the Second Option**:
- The second set includes:
- Menstruation (the monthly cycle involving shedding of the uterine lining)
- Egg (female reproductive cell)
- Oviduct (fallopian tube, where fertilization occurs)
- Uterus (where the embryo develops)
- Here, menstruation is related to the female reproductive cycle but does not directly relate to the other terms in the context of reproduction.

4. **Analyze the Third Option**:
- The third set includes:
- Sperm (male reproductive cell)
- Oviduct (female reproductive structure)
- Embryo (developing organism after fertilization)
- Uterus (where the embryo develops)
- This set mixes male and female reproductive terms but does not present an incorrect combination as it describes the process of fertilization and development.

5. **Conclusion**:
- The second option is the incorrect combination because it includes menstruation, which does not fit with the other reproductive terms that are directly related to fertilization and embryo development.

### Final Answer:
The set that has an incorrect combination is the second option: **Menstruation, Egg, Oviduct, Uterus.**

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