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The passage of eggs in uterus is lubr...

The passage of eggs in uterus is lubricated by the sectetion fromn mehlis ' glands in

A

Liver fluke

B

Ascaris

C

Platypus

D

kangaroo

Text Solution

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The correct Answer is:
To solve the question regarding the passage of eggs in the uterus being lubricated by the secretion from Mehlis' glands, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question asks which organism's eggs are lubricated during their passage through the uterus by secretions from Mehlis' glands. 2. **Identify Mehlis' Glands**: Mehlis' glands are specialized glands found in certain organisms, particularly in the phylum Platyhelminthes (flatworms). They play a crucial role in the female reproductive system by secreting substances that lubricate the passage of eggs. 3. **Consider the Options**: The options provided are: - Liver fluke - Ascaris - Platypus - Kangaroo 4. **Analyze Each Option**: - **Liver Fluke**: This is a type of flatworm (Platyhelminthes) and possesses Mehlis' glands. The secretion from these glands lubricates the passage of eggs through the uterus. - **Ascaris**: This is a roundworm (Nematoda) and does not have Mehlis' glands. - **Platypus**: This is a mammal (Chordata) and does not have Mehlis' glands. - **Kangaroo**: This is also a mammal (Chordata) and does not have Mehlis' glands. 5. **Conclusion**: Since only the liver fluke belongs to the phylum Platyhelminthes and has Mehlis' glands that secrete lubricating substances for the passage of eggs, the correct answer is **Liver Fluke**. ### Final Answer: The passage of eggs in the uterus is lubricated by the secretion from Mehlis' glands in the **Liver Fluke**. ---
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