In performing an immunological procedure, you add 2 ml of serum to 18 ml of saline. two 1: 2 serial dilutions are then made. what is the dilution of serum contained in the final tube?

Which level of consumer had access to the smallest apply of energy

What is the starting point in replication called

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper