Size of Acetabularia is

Options

A. 10 cm
B. 10 mm
C. `1*0 "mm"`
D. `0*1 "mm"`

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question asks about the size of Acetabularia, which is a type of green algae.

2. **Understand the Characteristics**: Acetabularia is a unicellular organism, meaning it consists of a single cell. It is also classified as a eukaryotic organism because it contains a nucleus.

3. **Know the General Size Range**: Typically, unicellular eukaryotic organisms range from 1 to 100 micrometers in size. However, Acetabularia is an exception to this general rule.

4. **Determine the Size of Acetabularia**: Acetabularia can grow significantly larger than most unicellular organisms. It can reach sizes up to 10 centimeters, which is large enough to be seen with the naked eye.

5. **Evaluate the Options**: The options given are:
- A) 10 cm
- B) 10 mm
- C) 1.0 mm
- D) 0.1 mm

6. **Select the Correct Answer**: Based on the information that Acetabularia can grow up to 10 cm, the correct answer is option A) 10 cm.

**Final Answer**: The size of Acetabularia is 10 cm (Option A).

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