which of the following is a primary sex for characteristic?

To determine which of the following is a primary sex characteristic, you need to know what primary sex characteristics are. Primary sex characteristics refer to the physical features directly involved in reproduction. They are present at birth or develop during puberty.

Without knowing the available options, I cannot provide a direct answer. However, I can explain how to identify a primary sex characteristic.

1. Look for characteristics related to reproductive organs: Primary sex characteristics include the presence of testes (male) or ovaries (female), as well as the associated internal reproductive structures such as the uterus and fallopian tubes (female) or seminal vesicles and prostate gland (male).

2. Consider external genitalia: Primary sex characteristics also involve external genitalia. Males typically have a and scrotum, while females have a clitoris, labia, and l opening.

3. Factor in secondary sex characteristics: While not primary sex characteristics, it's important to mention secondary sex characteristics. These are the physical traits that develop during puberty but are not directly involved in reproduction. Examples include breast development in females and facial hair growth in males.

Given the options, examine each one by considering the presence and development of reproductive organs and external genitalia. By doing so, you can identify the primary sex characteristic among the provided choices.