Apolysis involves

Options

A. Phagocytosis
B. Breaking of pseudopodia
C. Separation of gravid proglottids
D. Infection of secondary host

Answer

### Step-by-Step Solution for the Question "Apolysis involves":

1. **Understanding Apolysis**: Apolysis is a biological process that involves the shedding of certain structures in specific organisms. In this context, it is related to the Tinea worm, which is a member of the phylum Platyhelminthes and class Cestoda.

**Hint**: Think about the biological processes that involve shedding or detachment in organisms.

2. **Identifying the Organ**: The Tinea worm has a specialized organ called the Gravid Proglottis. This organ plays a crucial role in the process of apolysis.

**Hint**: Consider the specific structures in parasitic worms that might be involved in reproduction or shedding.

3. **Process of Shedding**: During apolysis, the Gravid Proglottis detaches from the posterior end of the Tinea worm. This detachment is significant because it leads to the release of eggs.

**Hint**: Focus on the relationship between the structure (Gravid Proglottis) and the process (shedding).

4. **Role of Feces**: The detachment occurs when the feces of the host are present. The Gravid Proglottis sheds its skin, which contains mature male and female sex organs, leading to the production of eggs.

**Hint**: Think about how the life cycle of a parasite can be influenced by the host's excretion.

5. **Infective Stage**: The eggs produced during apolysis are in an infective stage, which can lead to diseases in humans, specifically Teniosis.

**Hint**: Consider the implications of shedding in terms of the life cycle and transmission of parasites.

6. **Conclusion**: Therefore, apolysis specifically involves the separation of the Gravid Proglottis from the Tinea worm, which leads to the shedding of eggs that can infect a host.

**Hint**: Summarize the entire process to understand the significance of apolysis in the life cycle of the Tinea worm.

### Final Answer:
Apolysis involves the separation of the Gravid Proglottis from the Tinea worm, leading to the shedding of eggs that can cause infection in hosts.