Answer: cytoskeletons

AnswerCrossword Clue
cytoskeletonsA microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence
cytoskeletonsCYTOSKELETON, the network of protein filaments and microtubules in the cytoplasm that controls cell shape, maintains intracellular organization, and is involved in cell movement