_____ is the stimulus for phototropism
a. Red light c. Green light
b. Far-red light d. Blue light
D
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The precursor of each new nucleotide in a strand of DNA is a
A) deoxynucleoside 5'-diphosphate. B) deoxynucleoside 3'-diphosphate. C) deoxynucleoside 5'-triphosphate. D) deoxynucleoside 3'-triphosphate.
In a transect across the 98th meridian (across the great plains) from west to east, which of the following gives the correct sequence of soil orders?
A. Alfisols, Aridisols, Ultisols B. Aridisols, Oxisols, Mollisols C. Aridisols, Spodosols, Ultisols D. Aridisols, Mollisols, Alfisols E. Alfisols, Mollisols, Aridisols
Which of the following is an incorrect pairing?
A) protozoa; multicellular B) fungi; cell walls C) algae; aquatic and marine habitats D) prokaryotes; no nuclei E) viruses; acellular parasites
The difference between a restrictive pulmonary disorder and an obstructive pulmonary disorder is that in the restrictive disorder, the lungs lose their elasticity, while in an obstructive disorder, air does not flow freely in the airways.
Answer the following statement true (T) or false (F)