Fill in the blanks:
An _____________ egg is the largest animal cell.

Explanation

To fill in the blank in the statement "An _____________ egg is the largest animal cell," we need to identify the largest animal cell based on the information provided.

1. **Identify the largest animal cell**: The transcript mentions that the largest animal cell is the ostrich egg.
2. **Fill in the blank**: Based on this information, we can fill in the blank with the word "ostrich."
3. **Complete the statement**: The completed statement reads: "An ostrich egg is the largest animal cell."

**Final Answer**: An **ostrich** egg is the largest animal cell.

...