An example of insoluble fiber is ____
a. glucose
b. starch
c. cellulose
d. sucrose
e. phospholipids
ANSWER: c
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The shape of the virus is determined by its
A. nucleic acid. B. capsid. C. envelope. D. tail.
Which step in the evolution of life is the most complex and probably occurred last?
a. formation of DNA b. formation of protein-RNA systems c. formation of membrane-bound proto-cells d. spontaneous formation of organic compounds under abiotic conditions e. formation of ATP
Scientists sometimes use gene sequencing to establish a family tree. A family tree shows the evolutionary relationship between various species. The fewer the differences that are present in the genetic makeup between two species, the closer their evolutionary relationship. What type of evidence does gene sequencing represent?
A) comparative embryology B) identification of a common ancestor C) molecular biology D) comparative anatomy
Innate, physical barriers of host defenses ______. Select All That Apply
Fill in the blank(s) with the appropriate word(s).