Observation is the answer
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Because the earth is in an angle so the northern hemisphere receives more heat and vice versa
The correct option is this: PROTO ONCOGENES BECOMES ONCOGENES.
Proto oncogenes genes are those genes that regulate the process of normal cell division in the living system. These cells starts cell division when necessary and terminate the cell division when the necessary cells have been formed. When these genes lose the power to regulate cell division, the cells continue to divide indefinitely without stopping and this leads to a medical condition called cancer. At this stage, the proto oncogenes have been turned into oncogenes, which are genes that caused uncontrolled cell cycle divisions.
Answer:
A) Education Websites
Explanation:
Because generally websites, are signed by an author that will also state sources to their information for verifcation.