Which statement best describes a cell? a. a compartment that contains dna and regulates when genes are turned on and off. b. the smallest structural and functional unit of organism can can be said to be alive. c. a sac-like membrane that stores water. d. a small compartment that includes a cytoplasm nucleus and a cell membrane

B. the smallest structural and functional unit of organism can can be said to be alive.

Explanation:

Cell -

cell is the basic functional and structural unit of the living organisms .

Cell is considered to be the tiniest unit of the life , being the the building block of the organism .

The cell consists of a cell membrane , cytoplasm , and nucleus .

human body is composed of about 40 trillion of cells .

hence , the correct option about cell is ( B ) .

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

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tony (lordcaos066)