Which of these is not factored into the formula for blood flow volume?
a. rate of flow
d. blood pressure
flow resistance
e. all are factors
flow distance

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

answer; both surfaces of the membrane are nonpermeable

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.