The primary role of the carbonic acid−bicarbonate buffer system is to

Preventing ph changes caused by the rising and falling pco2 of the plasma

The answer would be sand and gravel

What is the difference between cytokinesis in plant and animal cells? animal cells dived by a cleavage furrow. plant cells divide by a cell plate that eventually becomes the cell wall. cytoplasm and cell membranes are necessary for cytokinesis in both plant and animals.