Which does not contain a lens? a. a camera b. an eye c. binoculars d. a mirror

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

In which of these cases are the two wave points considered to be in phase with each other?