The nucleus of an atom is made of . A. electrons and empty space
B. protons and neutrons
C. protons and electrons
D. neutrons and electrons

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Fredrick griffith made a scientific discovery in 1928

What is the one part of the nucleotide  that differs among the other different nucle  tides?