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.

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

Where are the strongest jet streams located?