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Without mitosis in real life, we'd all be covered in cuts and have no hair. Mitosis helps replace nail, hair, and skin cells which is an important part of life. We need hair for essential things like keeping warm and skin is a vital organ.

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1.  Define Prophase - The spindle forms and DNA strands attach at their centromere
2. Define Metaphase - Centromeres of the duplicated chromosomes line up across the center of the cell, The spindle fibers connect the centromere of each chromosome to the two pieces of the spindle
3. Define Anaphase - The centromeres are pulled apart and the chromatids separate to become individual chromosomes, The chromosomes separate into 2 groups near the poles of the spindle
4. Define Telophase - The chromosomes spread out into a tangle of chromatin. Nuclear envelope re-forms around each cluster of chromosomes. The spindle breaks apart. A nucleolus becomes visible in each daughter nucleus.

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(step 1)

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(step 2)

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(step 3)

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(step 4)

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Aexual reproduction has advantages such as: being quick and easy, and many offsprings can be created.
Sexual reproduction can also have many advantages such as: genetic diversity and offspring can adapt to changes.

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Cell Division- the process by which a cell divides into two new daughter cells
Asexual Reproduction- involves a single parent producing the offspring
Sexual Reproduction- offspring are produced by the fusion of two sex cells (one from each of two parents)
Chromosomes- single, circular DNA molecules that contains most of the cell's genetic information
Chromatin-substance found in eukaryotic chromosomes; composed of DNA and histone proteins
Binary Fission- a form of asexual reproduction during which two genetically identical cells are produced
Chromatid- each strand of a duplicated chromosome
Centromere- the area where each pair of chromatids is joined
Centrioles- tiny structures located in the cytoplasm of animal cells that help organize the spindle
Spindle- a fanlike microtubule structure that helps separate the chromatids

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Four Phases-
Prophase
step 1- duplicated chromosome condenses and becomes visible
step 2- the centrioles move to opposite sides of the nucleus and help organize the spindle
step 3- the spindle forms and DNA strands attach at their centromere
step 4- the nucleolus disappears and nuclear envelope breaks down
Metaphase
step 1- centromeres of the duplicated chromosomes line up across the center of the cell
step 2- the spindle fibers connect to the centromere of each chromosome to the two pieces of the spindle
Anaphase
step 1- the centromeres are pulled apart and the chromatids separate to become individual chromosomes
step 2- the chromosomes separate into two groups near the poles of the spindle
Telophase
step 1- the chromosomes spread out into a tangle of chromatin
step 2- nuclear envelope re-forms around each cluster of chromosomes
step 3- the spindle breaks apart
step 4- a nucleolus becomes visible in each daughter nucleus

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https://youtu.be/f-ldPgEfAHI