Which of the following is a sanguivore and characterised by the presence of botryoidal tissue?

Options

A. Tubifex
B. Aphrodite
C. Megascolex
D. Hirudinaria

Answer

To solve the question, we need to identify the organism that is a sanguivore and is characterized by the presence of botryoidal tissue. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the term "sanguivore"
A sanguivore is an organism that feeds on blood. This term is derived from "sanguis," which means blood in Latin.

**Hint:** Look for organisms that are known for feeding on blood.

### Step 2: Identify the characteristic of botryoidal tissue
Botryoidal tissue refers to a specific type of tissue that is characterized by a grape-like (botryoidal) appearance. This tissue is typically found in certain organisms, particularly in some types of worms.

**Hint:** Consider the types of organisms that have specialized tissues and look for those with unique structures.

### Step 3: Connect sanguivore with botryoidal tissue
Now, we need to find an organism that is both a sanguivore and has botryoidal tissue. Research and knowledge indicate that certain types of worms, particularly those in the class Hirudinea (leeches), possess these characteristics.

**Hint:** Think about the class of organisms that are known for blood-feeding habits.

### Step 4: Identify the correct organism
Among the organisms that fit the criteria, Hirudinea (leeches) are known to be sanguivores and are characterized by the presence of botryoidal tissue.

**Hint:** Remember that leeches are commonly associated with blood-feeding and have unique anatomical features.

### Conclusion
Based on the above steps, the answer to the question is **Hirudinea**.

**Final Answer:** Hirudinea