Biology, 10.01.2021 04:20, xavierfox1721
Which statement does NOT correctly describe a difference between a rock and a mineral?
A. Minerals are found in all types of environment while rocks are found in specific environments.
B. A mineral has a definite crystal structure which is not the case in a rock.
C. The hardness of a mineral is greater than that of a rock.
D. The composition of a mineral is uniform while a rock's is not.
Answers: 2
Biology, 21.06.2019 20:00, anthonyjackson12aj
Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls
Answers: 1
Biology, 22.06.2019 04:30, donaji1024perez
Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna. nothing should be altered. the ph should be decreased. the temperature should be raised.
Answers: 2
Biology, 22.06.2019 13:50, s2000damian
What is the difference between a meteoroid and a meteor?
Answers: 2
Which statement does NOT correctly describe a difference between a rock and a mineral?
A. Minerals...
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