How is the capsid protein important to the functioning of a virus?

The cell transcribes and translates the viralgenetic information into viral capsid proteins, sometimes that genetic program causes the host cell to make copies of the virus and in the process the host cell is destroyed.

i'd say that the moon rock is about 2.2 billion years old.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.