Biology, 22.10.2019 05:20 adswadsaasdads
Bacteria convert atmospheric nitrogen to which of the following in the process of nitrogen fixation?
question 1 options:
nitric acid
phosphorus
ammonia
nitrogen gas
question 2 (20 points)
question 2 unsaved
during which of the following steps of the water cycle is water changed from a vapor state to a liquid state?
question 2 options:
evaporation
precipitation
condensation
transpiration
question 3 (20 points)
question 3 unsaved
what impact can deforestation have on the water cycle?
question 3 options:
carbon dioxide is released into the air as trees are burned.
photosynthesis increases, thereby increasing the amount of carbon dioxide in the air.
transpiration declines.
the amount of nitrogen-fixing bacteria increases.
question 4 (20 points)
question 4 unsaved
which of the following is the source of energy for the water cycle?
question 4 options:
volcanic eruptions
the sun
winds
gravity
question 5 (20 points)
question 5 unsaved
why is nitrogen fixation such an important step in the nitrogen cycle?
question 5 options:
soil nitrogen is different.
plants can't use nitrogen in the form of n2.
bacteria convert the fixed nitrogen back into n2.
decomposers need to use nh4+.
Answers: 2
Biology, 21.06.2019 16:10
Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.
Answers: 3
Biology, 22.06.2019 01:30
Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?
Answers: 1
Biology, 22.06.2019 04:40
Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening
Answers: 1
Bacteria convert atmospheric nitrogen to which of the following in the process of nitrogen fixation?...
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