are described in line 16 as able to go beyond chewing.Choices a,
b, and care distracters that might be chosen if not reading care-
fully. Choice e, preparation,is too vague.
- b.Lines 30–32 clearly state that dentinal tubules are micro-canals
that radiate outward through the dentine from the pulp cavity to the
exterior cementum border.
- c. In the passage, the substances in choices a,b,d, and eare all
described as organic substances. Therefore, choice c, an inor-
ganic substance, is correct.
- a. Lines 55–58 identify how natural ivory can be authenticated.
- c. According to the fifth paragraph of the passage, enamel is the
hardest animal tissue (animal tissue, by nature, is a living thing,
and thus organic), ameloblasts help form it, and it has a pris-
matic structure (choices a, b, d, and e). Choice cis incorrect
because lines 55–58 state that ivory is commonly tested via
ultraviolet light, which would indicate exposure.
- c. Choice cis correct because these lines specifically speak to the
evaluation process of the scientific method.
- d.The entire passage is instructive and about educating
the reader.
- e.Falsificationismmeans to refute and prove wrong as supported in
lines 38 and 63 of the passage.
- d.Peer reviewis proposed as a vital part of the scientific method,
and it is directly supported as such by lines 61–67 in the pas-
sage. The other statements are all true.
- c. Lines 31–35 of the passage support this truth about hypotheses.
The other statements about hypotheses are false.
- b.This is the best choice as it explains the overall point of the pas-
sage, which is a step-by-step process covering the scientific
method. Choice eis close, but the entire passage is not about
evaluating data. Choice ais incorrect because the theory of rel-
ativity is only cited as an example, not as a general topic. Like-
wise, choice conly considers a small part of the passage. Choice
dis too specific.
- c. Operational definitionis defined as a clear definition of a meas-
urement in lines 26–29 in the passage.
- a. Choice ais supported by the passage. Choicecis not supported
anywhere in the passage. Choicesb,d, and eare all incorrect
interpretations of information contained in the passage and are
careless choices.
- b.All the other choices are indicated in the passage to be steps of
the process of scientific method.
