Which of the following is the most significant source of blood flow resistance?A) blood vessels type
B) blood viscosity
C) total blood vessel length
D) blood vessel diameter

Describe the function of the endomembrane system? what organelles are involved?

How can an organ, such as the lungs, work for multiple body systems?

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.