The first phase of Mitosis is . In this phase the DNA condenses down into , and the duplicated separate. The second phase of Mitosis is . In this phase the sister chromatids line up on the plate through a push and pull motion as they connect to the microtubule spindle fibers emanating from the . The third phase of Mitosis is . In this phase the (sister chromatids or homologous chromosomes) are pulled apart. The fourth phase of Mitosis is . In this phase the nuclear starts to reform and the DNA de-condenses.

1. Prophase

2. Chromosomes

3. Metaphase

4. Cell

5. Centrosomes

6. Anaphase

7. Duplicated chromosomes

8. Telophase

9. Membrane

Explanation:

This question is describing the process of mitosis which consists of four stages namely: prophase, metaphase, anaphase, and telophase etc.

- PROPHASE is the first stage of mitosis where DNA condenses down into CHROMOSOMES, and the duplicated separate.

- METAPHASE is characterized by the lining up of sister chromatids at the CELL PLATE through a push and pull motion as they connect to the microtubule spindle fibers emanating from the CENTROSOME.

- ANAPHASE is the third stage of mitosis in which DUPLICATED CHROMOSOME/SISTER CHROMATIDS are pulled apart into opposite poles.

- The fourth stage is TELOPHASE where the NUCLEAR MEMBRAN starts to reform and the DNA de-condenses.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!