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.

the correct answers are:

a - pacific plate;

it is the biggest oceanic tectonic plate. surrounded on all sides by continental tectonic plates, it is submerging and gradually becoming smaller and smaller.

b - north american plate;

huge continental plate, occupying big portion of the northern hemisphere.

c -eurasian plate;

alongside the north american plate, it is one of the two dominant continental plates in the northern hemisphere.

d - indian plate;

a small continental plate, that has been part of gondwanaland initially, but after the break up of it, moved towards northeast and pushed into the eurasian plate that was once part of laurasia.

answergeosphere;