Multiple choice: select the best answer and click "submit." what was the work of rudolf virchow trying to prove? a. all cells came from preexisting cells. b. bacteria were unicellular organisms. c. the theory of spontaneous generation could be supported. d. plants had different cells than animals.

Ascientist is studying muscle twitches in chicken quadriceps. to activate the muscle, he needs to provide stimulus to the

Areal dna molecule consists of thousands of these pairs of nucleotides. what is the pairing arrangement of the nitrogen bases

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.