What did Engelmann conclude about the congregation of bacteria in the red and blue areas?
A) Bacteria congregated in these areas due to an increase in the temperature of the red and blue light.
B) Bacteria congregated in these areas because these areas had the most oxygen being released.
C) Bacteria are attracted to red and blue light and thus these wavelengths are more reactive than other wavelengths.
D) Bacteria congregated in these areas due to an increase in the temperature caused by an increase in photosynthesis.
B
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Which mutations can interfere with the proper insertion of a protein in the plasma membrane?
A. A polar amino acid to a non-polar amino acid within a transmembrane domain B. A non-polar amino acid to a polar amino acid within a transmembrane domain C. A polar amino acid to a non-polar amino acid within a cytoplasmic domain D. A non-polar amino acid to a polar amino acid within a cytoplasmic domain Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the amino acids found in a transmembrane domain? What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? 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?
An amino acid that cannot by synthesized by cellular biochemical pathways (and therefore must be obtained from the diet) is called a(n) ____ amino acid
Fill in the blank with the appropriate word.
Your instructor has assigned you the task of identifying an unknown fungus. When you examine the cellular structure under the microscope, you note that the cells are flagellated. To which group does the unknown fungus belong?
A. chytrids B. choanflagellates C. yeasts D. conidia E. bread molds
What is the primary means of reproduction among the protists, cnidaria, and tunicates?
A. asexual reproduction B. sexual reproduction C. asynchronous reproduction D. hermaphroditic reproduction