One important part of the cell theory is that all cells originate from other cells. however, the cell theory could not have been authored, without the knowledge from a prior experiment in the 1600's. in it, francisco redi, proved that rotting meat did not alone give rise to maggots. redi proved that all life had to come from the same previous life form. redi disproved the idea that a) all cells come from other cells. b) asexual reproduction is possible. c) life could arise by spontaneous generation. d) the most basic unit of life is a single cell.

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic