Physics, 03.10.2021 16:40 mazielynn84
What can be correctly concluded from this experiment?
A sealed bottle containing bacterial cells and nutrients needed for cell growth is exposed to intense heat. It is then cooled. The bottle is not opened. Once the bottle has cooled, scientists note that even after several weeks, no bacteria growth occurs in the bottle.
1. New cells can only form from existing, living cells.
2. New cells can only form from nutrients if energy is provided.
3. New cells can only form in the presence of nutrients.
4. New cells can form from nonliving materials.
Answers: 3
Physics, 21.06.2019 23:30
Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement
Answers: 3
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
Answers: 2
Physics, 22.06.2019 16:30
Select all the correct answers. which three statements about electromagnetic radiation are true?
Answers: 3
What can be correctly concluded from this experiment?
A sealed bottle containing bacterial cells a...
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