Question

introduction and instructions. there are four images of cell division stages above four blank boxes labeled prophase, metaphase, anaphase, telophase respectively, with arrows between the blank boxes.

Explanation:

1. Prophase: Chromosomes condense, nuclear envelope breaks down, spindle fibers form. The second top image matches this (condensed chromosomes, intact but breaking nuclear envelope, spindle forming).
2. Metaphase: Chromosomes line up at the cell's equator, attached to spindle fibers. The third top image matches this (chromosomes aligned in the middle).
3. Anaphase: Sister chromatids separate and are pulled to opposite poles of the cell. The first top image matches this (chromatids moving to opposite ends).
4. Telophase: Nuclear envelopes reform around chromosomes at each pole, cell begins to split. The fourth top image matches this (two new nuclei forming, cell starting cytokinesis).

Answer:

Prophase: <second top image (chromosomes condensed, nuclear envelope present, spindle forming)>
Metaphase: <third top image (chromosomes aligned at cell equator)>
Anaphase: <first top image (chromatids pulled to opposite poles)>
Telophase: <fourth top image (two nuclei forming, cell pinching)>