What do the orange and yellow spheres represent in this model of an atomic nucleus?[Atomic nucleus] A Gluons and leptons
B Protons and neutrons
C Positrons and electrons
D Atoms and molecules

The model illustrates a process by which a substance is taken up by a cell

Which factor that affects biodiversity?

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.