In terms of their nitrogenous base component, how many different kinds of RNA nucleotides are
there?
a. 3
b. 4
c. 5
d. 6
e. 12
B
Biology & Microbiology
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A vein always carries:a
blood to the heart. b. blood from the heart. c. oxygen-rich blood. d. oxygen-poor blood. e. blood rich in carbon dioxide.
Biology & Microbiology
Which term refers to the selective movement of specific small molecules and ions into excretory system tubules?
a. release b. secretion c. reabsorption d. filtration
Biology & Microbiology
Nucleotide analog mutagens cause (deletion/frameshift/point) mutations
What will be an ideal response?
Biology & Microbiology
Arthropods are
a. Carnivorous b. Herbivorous c. Omnivorous d. All of the choices are correct e. Choices A and B are correct
Biology & Microbiology