Increased atmospheric CO2 concentrations might have what effect on seawater?
A) Seawater will become more alkaline, and carbonate concentrations will decrease.
B) There will be no change in the pH of seawater, because carbonate will turn to bicarbonate.
C) Seawater will become more acidic, and carbonate concentrations will decrease.
D) Seawater will become more acidic, and carbonate concentrations will increase.
C
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The ability of a solution to resist changes in pH depends on its ____________________ capacity.
Fill in the blank(s) with the appropriate word(s).
What is the study of genomes of multiple species that interact in an environment, which can also be used to identify new species, called?
a. gene therapy b. transgenics c. metagenomics d. pharmacogenomics
Species interactions between members of a community include __________, which harms both species. Fill in the blank(s) with the appropriate word(s)
Which statement is false?
A) The ground tissue system of a leaf is called the mesophyll. B) Each vein in a leaf is composed of either xylem or phloem, but not both. C) The pith of a stem is often important in food storage. D) Tissues that are neither dermal nor vascular are known as the ground tissue system.