Metaboly occurs in

Options

A. Amoebids
B. Foraminiferans
C. Radiolarians
D. Euglenoids

Answer

**Step-by-Step Solution:**

1. **Understanding Metaboly**: Metaboly refers to the ability of certain organisms to change their shape and move. This is a characteristic movement seen in some protists.

2. **Identifying Organisms**: The question mentions several groups of organisms: Amoeboids, Amnipherons, Radiolarians, and Euglenoids. We need to determine which of these exhibit metaboly.

3. **Focusing on Euglenoids**: Among the mentioned organisms, Euglenoids (such as Euglena) are specifically noted for their unique movement called metaboly. They can change shape and exhibit a special motion.

4. **Characteristics of Euglenoids**: Euglenoids are primarily freshwater organisms, often unicellular, and are characterized by a flexible protein layer called the pellicle instead of a rigid cell wall. They possess flagella for swimming and can glide.

5. **Conclusion**: Based on the characteristics and the ability to perform metaboly, the correct answer to the question "Metaboly occurs in" is Euglenoids.

**Final Answer**: Metaboly occurs in Euglenoids.

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