Which statement is one of the three parts of cell theory?
a) the smallest living things are single cells, and cells are the functional units of multicellular organisms.
b) there are three types of cells, prokaryotic, eukaryotic plant, and eukaryotic animal.
c) cells make up tissues, tissues make up organs, organs make up systems, systems make up organisms.
d) cell organelles can be membrane-bound or not membrane-bound.
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A) The smallest living things are single cells, and cells are the functional units of multicellular organisms.

tropical storm katrina, and it made landfall between miami and fort lauder-dale, florida, as a category 1 hurricane (a storm that, on the saffir-simpson scale, exhibits winds in the range of 74–95 miles per hour [119–154 km per hour]). sustained winds of 70 miles per hour (115 km per hour) lashed the florida peninsula, and rainfall totals of 5 inches (13 cm) were reported in some areas. the storm spent less than eight hours over land. it quickly intensified when it reached the warm waters of the gulf of mexico.

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answer; the correct answer to the above statement is (biosphere); ///