Leaching is most likely to affect the nutrients plants need in which soil horizon?
A. bedrock
B. soil base
C. subsoil
D. topsoil
Answer: D
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High-efficiency natural transformation
A) is common in Bacteria and Archaea. B) requires specialized DNA uptake, DNA binding, and integration proteins. C) is only common in Archaea. D) usually involves plasmids.
Which classification level is broader than the phylum level?
a. order b. class c. family d. kingdom
Which statement best describes the evolutionary significance of mutualism?
A) Mutualism offers more biodiversity to a community. B) Individuals partaking in a mutualistic relationship are more resistant to parasites. C) Interaction increases the survival and/or population growth rate(s) of mutualistic species. D) Mutualistic interaction lessens competition in communities where it is present. E) Mutualistic relationships allow organisms to synthesize and use energy more efficiently.
How many net ATP are produced during glycolysis?
a. 1 b. 2 c. 3 d. 4