Bacteria that lives in cold water could die off, causing the ocean to pollute its self with no natural way of cleaning it.
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Answer: Clock in the skin cells is called circadian clock.
Explanation:
Circadian clock is a system that requlates how the skin function and human physiology. The stem cells of basal epidermal harbors circadian clock.Circadian clock is found in some skin cells like melanocytes, keratinocytes and fibroblasts. Circadian clock found in skin cells may function by regulating cell proliferation.
Answer:
years
Explanation:
Given-
Half life of 
C 
years
As we know -
Where
Mass of radioactive carbon after a time period "t"
initial mass of radioactive carbon
radioactive decay constant
time
First we will find the value of "k"
On solving, we get -
Now, when mass of 14C becomes 
% of the plant material on earth today, then its age would be
years
cancer cells are the cells that divide relentlessly forming solid tumors or flooding the blood with abnormal cells
whereas the NORMAL CELLS are the cells which listen to signals of the neighbouring cells and stop growing when enroach on nearby tissues
