Cells can die or become damaged. Which part of cell theory is used to replace dead or damaged cells? A. Cells divide to make new cells.
B. Cells multiply by cellular respiration
C. Cells take in new cells through endocytosis. D. Cells grow larger to make up for the lost cells.

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How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures