A solution with a high concentration of hydrogen ions could have a pH of
A. 2.
B. 6.
C. 9.
D. 11.
A. 2.
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What is an average concentration of prokaryotic cells along the surface of pelagic water?
A) 104 cells/ml B) 106 cells/ml C) 108 cells/ml D) 1010 cells/ml
A population of flowers is in Hardy-Weinberg equilibrium with an allele frequency for white flowers (w) of 40%. What percentage of the flowers will have the colored or dominant phenotype?
A. 16% B. 25% C. 40% D. 60% E. 84% Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the Hardy-Weinberg principle? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
Which of the following is not an example of symbiotic nitrogen fixation?
A. Anabaenea with a water fern B. Rhizobium with leguminous plants C. Azotobacter with certain photosynthetic protists D. Frankia with woody shrubs
As a result of environmental heterogeneity, most populations are divided into smaller populations, referred to as local ________
Fill in the blank(s) with correct word