The cell membrane to control what enters and leaves a cell. which of these substance, which account for about two thirds of a cell's mass, is constantly moving in and out of the cell?
a. carbohydrates
b. protein
c. waste
d. water

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her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

your answer is going to be physical weathering

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.