In animal cell, cytokinesis occurs by cell plate/cell furrow formation.

Explanation

**Step-by-Step Solution:**

1. **Understanding Cytokinesis**: Cytokinesis is the process of cytoplasmic division that occurs after mitosis, resulting in the formation of two daughter cells. It is essential for cell division.

2. **Cytokinesis in Animal Cells**: In animal cells, cytokinesis occurs through a mechanism known as cell furrow formation. This process involves the constriction of the cell membrane.

3. **Formation of the Cleavage Furrow**: During cytokinesis in animal cells, a contractile ring composed of actin microfilaments forms just beneath the cell membrane at the equatorial plane of the dividing cell. This ring contracts, leading to the formation of a cleavage furrow.

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