A salt is a compound in which the hydrogen ion of __________ is replaced by some other cation
a. a base
b. an acid
c. an anion
d. a hydroxide ion
e. water
B
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A population that is divided into several local populations among which individuals occasionally
disperse (emigrate and immigrate) is known as a: a. metapopulation. b. life table. c. survivorship curve. d. source population. e. sink population.
What serves as a messenger for taking genetic information from the nucleus to the cytoplasm?
What will be an ideal response?
Biology is:
A) the study of living things. B) always used responsibly in advertising claims. C) a separate branch of science that studies how organisms interact with each other and with their environment. D) mostly a collection of facts that can be ordered and memorized. E) the means by which we can answer questions such as "Does God exist?"
Basic dyes such as methylene blue bind to cellular molecules that are ________.
A. positively charged B. hydrophobic C. negatively charged D. aromatic