Exhalation is a passive process unless we must forcibly exhale
a. true
b. false
Answer: a. true
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Which of the following correctly lists the six most abundant elements found in living organisms?
A. carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur B. water, carbon, oxygen, nitrogen, phosphorus, sulfur C. water, carbon, hydrogen, oxygen, nitrogen, salt D. carbon, hydrogen, oxygen, carbon dioxide, nitrogen, salt
The scientist given credit for devising the two-word scientific naming system is
A. Carolus Linnaeus. B. Charles Darwin. C. Gregor Mendel. D. Aristotle. E. Louis Pasteur.
In plants, ammonium is often converted to nitrate before it can be used by the plant. This process is known as
A) nitrogen fixation. B) photosynthesis. C) decarboxylation. D) nitrification. E) denitrification.
After DNA systhesis (ie S-phase) an identical copy of the DNA has been made and this is present in the two chromatids when viewed as the chromosome.
a. true b. false