Biology, 16.10.2020 23:01, allyssaharrisooy50au
2.
Mrs. Johnston heated 5 grams of sugar. The sugar first looked shiny, and then it melted and became dark brown. Finally, all that was left was a black, shiny residue. She then heated 5 grams of sand in the same way. The sand’s appearance did not change.
What explains these results?
Answers: 2
Biology, 20.06.2019 18:04, swelch2010
What is one way in which a discovery that is made by using cell technology could change existing scientific knowledge? a. a discovery could lead to a change in experimental methods. b. a discovery could lead to a replacement of a scientific theory. c. a discovery could lead to a new brand of cell culture medium. d. a discovery could lead to a new material for culture flasks.
Answers: 3
Biology, 21.06.2019 12:40, abalth8463
Which of the following would most likely be key to gathering evidence that the rna world hypothesis is valid? creation of suitable environments for long-term study of single-celled organisms simulation of early earth conditions and long-term study of the resulting molecules development of a system for studying the microsphere's ability to absorb additional molecules categorization of the different specific conditions that result in the development of microspheres
Answers: 2
2.
Mrs. Johnston heated 5 grams of sugar. The sugar first looked shiny, and then it melted and beca...
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