Ureters act as urinogenital ducts in

Options

A. frog's males
B. human males
C. human females
D. frog's both males and females

Answer

To solve the question "Ureters act as urinogenital ducts in:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Function of Ureters:**
- Ureters are tubes that carry urine from the kidneys to the bladder. In some organisms, they may also serve additional functions.

**Hint:** Research the basic anatomy and function of ureters in different organisms.

2. **Identify the Options:**
- The options provided are:
- a) Frogs (males)
- b) Human males
- c) Human females
- d) Frogs (both males and females)

**Hint:** List out the characteristics of each organism mentioned in the options.

3. **Analyze Ureter Function in Frogs:**
- In male frogs, the ureters do not only transport urine but also carry sperm. This dual function allows them to act as urinogenital ducts.

**Hint:** Recall the reproductive anatomy of male frogs and how it differs from that of humans.

4. **Compare with Other Options:**
- In human males and females, ureters only transport urine to the bladder and do not serve as urinogenital ducts.
- In female frogs, ureters only carry urine.

**Hint:** Think about the reproductive systems of humans and frogs to see how they differ in terms of ureter function.

5. **Conclusion:**
- Since the ureters in male frogs serve as urinogenital ducts by carrying both urine and sperm, the correct answer is option A: Frogs (males).

**Hint:** Confirm your answer by reviewing the definitions of urinogenital ducts and how they apply to the organisms in the options.

### Final Answer:
The correct answer is **option A: Frogs (males)**.