Explanation:
In general, tumors occur when cells divide and grow excessively in the body. Normally, the body controls cell growth and division. New cells are created to replace older ones or to perform new functions.
Domain of a function is the type of parameters it takes as input. The domain of a sine function is angle in either degrees or radians. The function that represents the population growth of the bacteria that is tripling every minute is given by the mathematical expression,
,
where, t is time in minutes, 
is the initial population size, and 
is the population at time, t.
The domain of this function will be time, t.
RNA, touches nearly everything in a cell. RNA carries out a broad range of functions, from translating genetic information into the molecular machines and structures of the cell to regulating the activity of genes during development, cellular differentiation, and changing environments. RNA is usually catalyzed by an enzyme. RNA polymerase using DNA as a template, a process known as transcription. The enzyme then progresses along the template strand.
C is your answer :)
And also C and D are true but its C.
This question is on Yahoo Answers
<span>A fast-flowing river of air that forms when two air masses of very different temperatures meet is called a jet stream :)</span>
