Questions

RNA has hydroxy group attached at the 2nd C-atom while DNA does not.

A cytoskeleton is the frame that gives shape to a cell. And also it offers support, and facilitates movement through three main components:

microfilaments,

intermediate filaments, and

microtubules.

The cytoskeleton helps the cell move in its environment and controls the movement of all of the cell's interior workings.

One word substitute for A person who loves everybody is Altruist. Altruism is the belief that the well-being of others is equally, if not more, important than the well-being or survival of the self. Further, altruism involves selfless acts or undertakings that put the welfare of others before one's own.

The Bill of Rights is the first 10 Amendments to the Constitution. 

And it specifies that "the enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people."