In his studies of different types of cells under a microscope, Rudolf Virchow saw many of the cells dividing into two cells. How did Virchow's observations contribute to the cell theory?

A. He discovered living cells.

B. He showed that living cells come from other living cells.

C. He discovered the parts of dead cells.

D. He showed that all plants and animals are made of cells.

Three archers each fire four arrows at a target. joe’s four arrows hit at points 10 cm above, 10 cm below, 10 cm to the left, and 10 cm to the right of the center of the target. all four of moe’s arrows hit within 1 cm of a point 20 cm from the center, and flo’s four arrows hit within 1 cm of the center. the contest judge says that one of the archers is precise but not accurate, another archer is accurate but not precise, and the third archer is both accurate and precise. which description applies to which archer? explain

What does si stand for,when referring to a system of measurement

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.