Name the parts of a mammalian ileum

About __ of the mass of the cell is water

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

If a dna molecule has 100 nucleotides and 22 of them are cytosine, how many thymines does it have?