Which four elements make up 96% of the matter found in all living organisms?
A) calcium, oxygen, hydrogen, carbon
B) carbon, oxygen, calcium, nitrogen
C) hydrogen, carbon, sodium, chloride
D) hydrogen, oxygen, carbon, nitrogen
Correct Answer:
Verified
Q12: The most abundant organic molecules in the
Q13: A substance that ionizes when added to
Q14: The smallest unit of a compound that
Q15: The smallest unit of an element that
Q16: Sol-gel transformation is an ability of _
Q18: Electrolytes are _
A) anabolic compounds.
B) catalysts.
C) ionized
Q19: Of the pH values below, which is
Q20: Water is the universal
A) solute.
B) solution.
C) solvent.
D)
Q21: Which group of lipids has a hydrophilic
Q22: A polypeptide can be made up of
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