Which tool did Maurice Watkins and Rosalind Franklin use when studying DNA?electron microscopeX-ray camera

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

Well technically there are two correct answers b and d. but for you its probably b in general.good day sir/ma'am : ) (i know not gender)

Answerhave membrane-bound organelles;