Question

25-26 biology zoom 1 2 3 4 5 6 7 8 which organelle is unique to animal cells and helps with cell division?

Explanation:

In animal cells, the centriole (usually labeled as structure 4 in typical animal cell diagrams) is unique to animal cells (and some lower plants) and plays a key role in cell division by helping to organize the mitotic spindle. Other organelles like nucleus (1), endoplasmic reticulum (2), cell membrane (3), lysosome (maybe other labels), mitochondria (6), Golgi (7), cytoplasm (8) are either present in plant cells too or not related to cell division in the unique way centrioles are for animal cell division.

Answer:

The organelle unique to animal cells and helping with cell division is the centriole (corresponding to structure 4 in the diagram, assuming standard labeling where centrioles are involved in spindle formation for mitosis/meiosis in animal cells).