In a pedigree chart, a male showing the specific trait being studied is indicated by a
a. darkened square.
b. clear square.
c. darkened diamond.
d. clear triangle.
e. darkened circle.
A
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Airways of the mammalian respiratory system function to ____
a. filter oxygen from carbon dioxide b. moisten external air c. cool external air d. filter water out of the air e. keep water out of the lungs
At the end of the "photo" reactions, where electrons are being passes from photosystem to electron transport chain to photosystem, where do the electrons finally arrive?
a) ATP b) NADPH c) The electrons are transferred to the synthesis reactions d) water
Why is an Rh factor conflict usually a problem only for the second child and subsequent children born to the Rh negative mother? When it is a problem for the first child?
What will be an ideal response?
The responses observed in type IV hypersensitivities result from the action of
A) IgE antibodies and mast cells. B) T cells and phagocytes. C) IgG and complement. D) autoantibodies. E) inflammatory chemicals.