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Tutor profile: Rokaya H.

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Rokaya H.
UC Berkeley Graduate with over six years of tutoring experience
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Questions

Subject: Basic Math

TutorMe
Question:

Solve the equation: 4x+12=36

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Rokaya H.
Answer:

1) 4x+12=36 the first step is to subtract 12 from both sides 4x+12= 36 -12 -12 --------- -------- 0 24 2) 4x=24 the second step is divide both sides by 4 4x/4=24/4 ------ x = 6

Subject: Chemistry

TutorMe
Question:

Name the following compounds? NaOH , HCl, NaCl

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Rokaya H.
Answer:

Sodium Hydroxide, Hydrochloric Acid, Sodium Chloride

Subject: Biology

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Question:

What are the major characteristics of cancer cells?

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Rokaya H.
Answer:

Cancer cells have five distinguishing characteristics: 1- Self- Sufficiency: unlike healthy cells, cancer cells proliferate (divide and grow) with out signals. Although cell division is a healthy process when relegated, cancer cells acquire the ability to divide uncontrollably. 2- Insensitivity to growth-inhibitory signals- Cancer cells display clear resistance to growth suppressing molecules and signals. 3- Resistance to apoptosis- Cancer cells resist signaled cell death (apoptosis), even when clearly damaged. 4- Induce angiogenesis- Cancer cells cause other cells to make more blood vessels . This allows cancer cells to have a greater blood supply, allowing them to further divide and grow. 5- Metastasis- Cancer cells have the ability to migrate and invade other tissues. 6- Immortality- Cancer cells activate genes that allow them to replicate and divide continuously.

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