Humans can digest starch but not cellulose because ________
a. starch is held together by a different type of linkage than cellulose is
b. starch and cellulose are composed of different monomers
c. the structure of starch is stabilized by hydrogen bonding
d. the monosaccharide in starch carries a nitrogen-containing functional group
a
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The granules of eosinophils contain ________.
A. antigens B. peroxidase C. serotonin D. antibodies E. histamine
Alzheimer's disease is a disorder of memory impairment and Parkinson's disease affects physical activity, but both result from a lack of a particular neurotransmitter.
a. true b. false
Which of the following features are used to identify chordates?
A) A hollow nerve cord B) A notochord C) A tail during embryonic development D) All of the above are features used to identify chordates.
In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red:2 roan:1 white?
A) red × white B) roan × roan C) white × roan D) red × roan