Biology, 15.02.2022 01:00 valeriemccarty6212
Indicate what the researcher did incorrectly in this procedure. A researcher wanted to make 1 L of a 2M sucrose solution. They calculated that 2 moles of sucrose (342 g per mole) weighs 684 grams. They carefully measured 1 L of water and poured it into a beaker (2 L capacity), added a stir bar, and placed the beaker on a magnetic stir plate. They then gradually added the 684 g of sucrose to the beaker and waited for it to dissolve.
Answers: 3
Biology, 22.06.2019 02:20
Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?
Answers: 3
Biology, 22.06.2019 08:50
Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells
Answers: 1
Indicate what the researcher did incorrectly in this procedure. A researcher wanted to make 1 L of a...
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