If there was a person with a contagious disease, and made four interactions, and those people each made four interactions including the contagious person, how many people would be infected?

Depending on the organism the number of in a cell may change

How do cells grow and reproduce to maintain homeostasis?

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated