Adult females tend to have less weight than adult males due to lesser development of

Options

A. Muscles
B. Skeleton
C. Both muscles and skeleton
D. Fat

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why adult females tend to have less weight than adult males. We need to identify the physiological factors contributing to this difference.

2. **Hormonal Influence**: The primary reason for the weight difference between adult males and females is hormonal. Males have higher levels of testosterone, while females primarily produce estrogen.

3. **Role of Testosterone**: Testosterone plays a significant role in increasing muscle mass and bone density. It promotes the development of muscle tissue and enhances bone strength, both of which contribute to a higher body weight in males.

4. **Role of Estrogen**: In contrast, estrogen, which is predominant in females, does not promote muscle and bone development to the same extent. This results in lower muscle mass and bone density in females compared to males.

5. **Comparison of Muscle and Bone Development**: Since males have more developed muscles and a denser skeleton due to testosterone, they generally weigh more than females. Females have lesser development in both muscles and skeleton.

6. **Conclusion**: Therefore, the correct answer to the question is that adult females tend to have less weight than adult males due to lesser development of both muscles and skeleton.

**Final Answer**: Both muscles and skeleton.

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