Which forms only in dividing animal cells?Group of answer choicescell platemetaphase platecleavage furrow

The cleavage furrow is the structure that only forms in dividing animal cells.

Here's a step-by-step explanation:

1. Cell division, or mitosis, begins with one cell, which prepares to divide by replicating its DNA.

2. The cell then enters metaphase, where the chromosomes align in the middle of the cell. This alignment is known as the metaphase plate, but it's not a physical structure, just a term for this stage of mitosis.

3. As the cell moves into anaphase and telophase, the chromosomes are pulled apart to opposite ends of the cell.

4. In animal cells, the cell membrane then begins to pinch inwards in a process called cleavage. This forms a furrow, or groove, around the circumference of the cell.

5. This cleavage furrow continues to deepen until it cuts the cell in two, resulting in two separate cells each with a complete set of chromosomes.

So, the cleavage furrow is the only one of your options that is a physical structure formed only in dividing animal cells. The cell plate is a similar structure but it forms in dividing plant cells, not animal cells.