In developing the cell theory, virchow proposed the idea that cells come from pre-existing cells. this was contradictory to the beliefs of most scientists at the time. louis pasteur provided proof of this when he performed an experiment with sterilized nutrient broth. the broth in straight neck flasks grew bacteria, but the flasks with curved necks did not grow bacteria. how are scientific theories formed?
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Biology, 21.06.2019 20:00
How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?
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Biology, 22.06.2019 08:50
What does the positioning of transcription factors determine?
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Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?
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Biology, 22.06.2019 21:30
Agenetically engineered corn plant is approved for agricultural use. the plant produces pollen that can make its own toxins. these toxins protect the corn plant against pests and no longer require the application of chemical pesticide. what is a likely impact on the farmer of growing such a variety of corn? a- the financial costs for the farmer would be lowered since less crops would be lost to pests. b-the financial costs for the farmer would be lowered since more crops would be lost to pests. c-the farmer may be held responsible for increasing chemical pollution. d-the farmer's expenses for pest control would increase due to an increase in bee population.
Answers: 2
In developing the cell theory, virchow proposed the idea that cells come from pre-existing cells. th...
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