What happens first after chlorophyll absorbs light energy?
A) Water splits into H+ and O2.
B) Hydrogen ions combine with electrons to produce NADPH.
C) Electrons are released and move to a higher energy level.
D) Carbon dioxide is converted to sugar.
C
Biology & Microbiology
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The diameter of a blood vessel will be reduced by the contraction of ________
a. cardiac muscle b. smooth and cardiac muscles c. skeletal and cardiac muscles d. smooth muscle e. skeletal muscle
Biology & Microbiology
How are the spores of mosses dispersed?
a. water b. wind c. animals d. all of these e. more than one of these but not all of these
Biology & Microbiology
The primary germ layers include all of following EXCEPT
a. endoderm b. ectoderm c. mesoderm d. morphogerm e. all of the above ARE primary germ layers
Biology & Microbiology
The tuberculin test is an example of an in vivo serological test.
a. true b. false
Biology & Microbiology