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# Tutor profile: Nikita R.

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Nikita R.
Medical Student
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## Questions

### Subject:Biology

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Question:

Describe mitosis in animal cells

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Nikita R.

Mitosis is a method of cell division used by animal cells. Non-diving cells are interphase where they are preparing for division. During this time the cell is replicating its DNA so make a second copy for the daughter cell. Prophase is the first phase of mitosis. During this phase, the cells condense the two copies of their DNA into chromosome. Each chromatid is connected to its sister chromatid at its centromere. The next phase is metaphase in which the sister chromatids line up in the center of the cell. Its sister chromatid connects to opposite centrosomes that aid in the diving of the chromosomes during mitosis. During anaphase the sister chromatids begin to pull to opposite poles via the chromosomes. The final phase is telophase and cytokinesis in which the separation of the cell completes and the membrane cleaves to form two identical cells.

### Subject:Calculus

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Question:

find the derivative of 7x^5 + 3x^3 - x^2 - 2x + pi

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Nikita R.

35x^4 + 9x^2 - 2x -2

### Subject:Algebra

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Question:

solve x2 – 4x – 8 = 0

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Nikita R.

x= (4 + sqr(16+32)) / 2 (4 + sqr(48)) / 2 (4 + 4 sqr(3)) / 2 2 + 2sqr(3) x= (4 - sqr(16+32)) / 2 (4 - sqr(48)) / 2 (4 - 4 sqr(3)) / 2 2 - 2sqr(3)

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