Lasso cells are present in

Options

A. Coelenterata
B. Ctenophora
C. Porifera
D. Protozoa

Answer

**Step-by-Step Solution:**

1. **Understanding Lasso Cells**: The first step is to identify what lasso cells are. Lasso cells are a specific type of stinging cells that are used for defense.

2. **Identifying the Organism**: Next, we need to determine which group of organisms possesses these lasso cells. It is important to know that lasso cells are found in a specific phylum.

3. **Phylum Identification**: Lasso cells are found in the phylum called **Ctenophora**. This group is commonly known as comb jellies.

4. **Function of Lasso Cells**: These cells serve a defensive purpose. They are highly developed in the tentacles of Ctenophora and are used to capture prey and defend against predators.

5. **Mechanism of Action**: The lasso cells contain a coiled thread filled with fluid. When triggered, this thread can penetrate the body of other organisms, releasing toxins that can paralyze and kill the prey.

6. **Conclusion**: Based on the information gathered, we conclude that lasso cells are present in **Ctenophora**.

**Final Answer**: Lasso cells are present in Ctenophora.

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