Mark the following statement as True or False:
An ostrich egg cell is the largest known cell.

Answer

To determine whether the statement "An ostrich egg cell is the largest known cell" is true or false, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Subject**: The statement refers to an "ostrich egg cell." We need to understand what this means. An ostrich egg is the reproductive cell (or gamete) of the ostrich, which is a large bird.

2. **Research the Size of the Ostrich Egg Cell**: It is known that the ostrich egg is indeed very large compared to other egg cells. An ostrich egg can weigh about 1.5 kg and has a diameter of about 15 cm.

3. **Compare with Other Known Cells**: When we consider other types of cells, such as those from other animals or plants, the ostrich egg cell is larger than most. For example, the largest known single-celled organism is the giant amoeba, but it is not larger than an ostrich egg.

4. **Conclusion**: Since the ostrich egg cell is the largest known cell, we can conclude that the statement is true.

### Final Answer:
The statement "An ostrich egg cell is the largest known cell" is **True**.

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