Which of the following explains how cells become specialized to develop into parts of organ systems? Select one:

Cells develop in particular areas of the body, which gives them the same functions.

Cells perform chemical reactions that change their physiology, which allows them to become organs.

Cells undergo differentiation during their development, which activates particular genes.

Cells join together with others that have the same function, which produces organs.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.

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