Biology, 31.01.2020 11:57 morrisjillian23
Astudent prepares some microscope slides showing root cells, leaf cells, and stem cells taken from a single plant. which statement best describes how these three cell types would appear in a light microscope?
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Biology, 22.06.2019 18:10
Which chemical reaction shows photosynthesis? a. water + carbon dioxide + sunlight → oxygen + glucose b. carbon + oxygen → carbon dioxide c. hydrogen + oxygen → water d. nitrogen + hydrogen → ammonia
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Biology, 22.06.2019 20:00
The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. the movement of materials into and out of the cell is called membrane transport. this activity will you identify the different mechanisms of membrane transport
Answers: 2
Biology, 22.06.2019 20:30
The hershey and chase experiments involved the preparation of two different types of radioactively labeled phage. which of the following best explains why two preparations were required? a. the bacteriophage used in the experiments was a t2 phage. b. it was necessary that each of the two phage components, dna and protein, be identifiable upon recovery at the end of the experiment. c. each scientist had his own method for labeling phage, so each conducted the same experiment using a different isotope. d. establishing the identity of the genetic material required observation of two phage generations.
Answers: 2
Astudent prepares some microscope slides showing root cells, leaf cells, and stem cells taken from a...
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