Describe trace elements.
A) Trace elements are abundant in the atmosphere and also abundant in the human body.
B) Trace elements are present in small amounts in the body and are required for normal growth and maintenance.
C) Trace elements are present in small amounts in the body and are not necessary for normal growth and maintenance.
D) Trace elements are present in small amounts in the atmosphere but accumulate in the body at high levels.
E) Trace elements are the elements produced by nuclear reactions in research laboratories.
Correct Answer:
Verified
Q120: All amino acid molecules contain
A)carbon,hydrogen,oxygen and phosphate.
B)carbon,oxygen
Q121: Which subatomic particles have a positive charge?
Q122: Explain why the atoms of inert elements
Q123: Molecules that store and process genetic information
Q125: Carbon-12 (12C)is the most common form of
Q126: All of the following are correct regarding
Q127: Indicate the maximum number of electrons that
Q128: The hydrolysis of ATP yields ADP,a phosphate
Q151: Adenine and guanine are
A) purines represented by
Q164: The most abundant high-energy compound in cells
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents