All living organisms
a. belong to one of three domains.
b. belong to the same kingdom.
c. belong to the domain Eukarya.
d. are composed of the same type of cell..
A
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Which functional group acts as an organic base?
a. carbonyl group b. hydroxyl group c. phosphate group d. amino group e. carboxyl group
Ethanol can be easily produced from:a
photosynthetic pigments. b. crystalline cellulose. c. root systems of plants. d. plant sugars. e. all of these.
The rate of eukaryotic transcription after initiation is increased by:
a. upstream promoter elements. b. the order of gene arrangement in operons. c. the action of catabolite activator proteins. d. how fast 5’ caps and 3’ tails can be added to pre-mRNA. e. enhancers.
Which of the following is not part of a flower?
Select one: a. stem b. sepal c. petal d. stamen e. carpel