One main reason kidneys filter the blood is to dispose of
A. excess water.
B. toxic levels of glucose.
C. excessive calories in the body.
D. toxic nitrogen-containing by-products of protein metabolism.
Answer: D
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The MMR vaccine is used to protect against
A. mononucleosis, mange, rubeola. B. measles, mange, rubeola. C. mononucleosis, mumps, rubella. D. measles, mumps, rubella.
What is the source of energy for the synthesis of organic molecules in a photoautotroph?
A. carbon dioxide B. inorganic compounds C. other organic compounds D. light E. heat
Glyceraldehyde-3-phosphate is an intermediary of glycolysis that can also be utilized in biosynthetic pathways.
Answer the following statement true (T) or false (F)
A scientific theory has which of the following properties?
A) It agrees with available evidence and all alternative hypotheses have been ruled out. B) It cannot be rejected. C) It has been absolutely proven. D) It does not need to be altered in the light of new evidence.