In the figure above, region 7 aids photosynthesis by
a. splitting water.
b. absorbing different wavelengths of light than chlorophyll.
c. transferring hydrogen ions to chlorophyll.
d. absorbing energy from chlorophyll.
e. absorbing energy from cytochromes.
B
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Tolerance is the acquired ability to make an adaptive immune response directed to self-antigens
Indicate whether the statement is true or false.
Overproduction of melatonin by the pineal gland may cause __________.
Fill in the blank(s) with the appropriate word(s)
Which statement regarding the scientific method is false?
A) Original hypotheses are formed after an experiment. B) Experiments need to be repeatable. C) Inductive reasoning is used to form a hypothesis. D) The control and experimental group are identical except for one variable. E) Observations are used to form a hypothesis.
Plasma cells release ________ that attach to an invading microbe, marking it for destruction.
A. interleukin-2 B. perforin molecules C. histamine D. antibodies