Which of the following blood types are safe to transfuse to O blood types?
A. A
B. B
C. AB
D. O
E. All of these blood types are safe to transfuse to O blood types
D
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Which experimental modification would most effectively help to determine the sequence of reactions and reaction intermediates in the Calvin cycle?
A. Exposing the cells to 14CO2 for various time intervals B. Exposing the cells to alternating periods of light and darkness C. Exposing the cells to radiolabeled O2 instead of 14CO2 D. Varying the amount of water the cells are exposed to Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content How would you begin to narrow down the experimental options? What key molecules could you focus on considering the investigation is about the Calvin cycle? Choose Answer Do you have all the information needed to determine which experimental approach would be most effective? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Bacteria associated with plants fix very small amounts of nitrogen, therefore they do NOT contribute significantly to the global N cycle
Indicate whether the statement is true or false.
If a viral gene prevents peptidoglycan units from being linked to lipid carriers, what will happen to the bacterial cell?
A. The cell wall will weaken, eventually leading to cell lysis. B. Lipid metabolism will become impaired. C. The cell wall with become stronger leading to virus to enter the lysogenic cycle. D. The bacterial cell will start to take on the properties of a Gram Negative cell.
Science does not involve
a. research. b. value judgments. c. theories. d. hypothetical concepts. e. controls.