Food of Ascaris consists of

Options

A. Decaying organic matter
B. Broken down tissues of the host intestine
C. undigested residues of host intestine
D. Blood ,fully and partially digested food

Answer

### Step-by-Step Solution:

1. **Identify the Organism**: Ascaris, scientifically known as Ascaris lumbricoides, is a type of roundworm that belongs to the phylum Aschelminthes. It is a parasitic organism that primarily resides in the human intestine.

2. **Understand Its Feeding Mechanism**: As a parasite, Ascaris derives its nutrients from the host's body. It primarily feeds on the nutrients that are present in the host's intestine.

3. **Analyze the Options**:
- **Option 1**: Decaying organic matter - This is not correct as Ascaris does not feed on decaying matter.
- **Option 2**: Broken down tissues of host intestine - While it is a parasite, Ascaris does not specifically feed on broken down tissues.
- **Option 3**: Undigested residues of host intestine - Ascaris does not primarily feed on undigested residues.
- **Option 4**: Blood, fully and partially digested food - This option is correct as Ascaris feeds on blood and the partially digested food present in the host's intestine.

4. **Conclusion**: Based on the analysis of the options, the correct answer is that the food of Ascaris consists of blood and fully and partially digested food.

### Final Answer:
The food of Ascaris consists of blood and fully and partially digested food.

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