In which category would you place soil quality?
a. ecosystem goods
b. ecosystem processes
c. ecosystem services
d. none of these
B
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What caused the Dust Bowl of the mid-1930s? What will be an ideal response?
The gametophyte is the dominant stage in the life cycle for which of the following plant groups?
a. club mosses b. whisk ferns c. liverworts d. horsetails e. ferns
Why are the complementary base-pairing rules so important when a cell needs to copy its DNA?
A) The cells need both strands to be accurate because each strand codes for one half of the gene. B) As long as there is one strand, a copy can be made by following the pairing rules. C) Transcription cannot proceed unless the pairs are in the proper sequence. D) Unless the bases pair up correctly, the DNA strand can break apart.
A pink-pigmented facultative methylotrophic bacterium is LEAST likely to be a classified as a member of
A) Rhizobiales. B) Rhodobacter. C) Methylobacterium. D) Proteobacteria.