Four of the five substances listed below are related
by a common chemical similarity. Select the
exception.
a. cellulose
b. fat
c. amino acid
d. protein
e. nucleic acid
Answer: c
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The building blocks of DNA are called _________
A. amino acids B. codons C. nucleotides D. alleles
Which of the following excretory tubule segments in mammals allows water to exit but does not allow
ions or urea to exit?
a. distal convoluted tubule b. Bowman's capsule c. descending segment of the loop of Henle d. proximal convoluted tubule e. ascending segment of the loop of Henle
A prokaryotic cell differs from a eukaryotic cell in that a prokaryotic cell:a
has a plasma membrane. b. contains organelles. c. has a nucleus. d. has DNA. e. is exemplified by bacteria
Sweat can cause damage to bacteria because it contains salt and lysozyme
Indicate whether the statement is true or false