Which is a form of active transport? proteins create openings on another side of the cell membrane. proteins open up channels in the cell membrane. proteins enter and exit the cell freely. proteins push molecules through the cell membrane.

Proteins push molecules through the cell membrane.

answer; 60-100; beats per minute

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.