In the diastole phase of the cardiac cycle, which is the correct direction of the flow of blood?
from the right ventricle to the pulmonary artery via the pulmonary valve
from the right atrium to the right ventricle via the mitral valve
from the right atrium to the right ventricle via the tricuspid valve

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Which of the following statements are true chromosomes make up genes

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons