Chemical messengers released directly into the bloodstream, with the ability to affect cells for hours or days, are called ________
A) Hormones
B) Dendrites
C) Neurotransmitters
D) Sensory cells
A
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The union of the two nasal bones forms the ________ of the nose.
Fill in the blank(s) with the appropriate word(s).
Sister chromatids ___________.
A) contain twice the normal amount of DNA. B) are found in cells called primary gametes. C) are found in cells called primary gametes, contain twice the normal amount of DNA, and occur during ovum formation. D) are found in cells called primary gametes and contain twice the normal amount of DNA. E) occur during ovum formation.
The step in vitamin D activation accomplished by the ____________________ is subject to regulation by ____________________ and ____________________
Fill in the blank(s) with correct word
The amount of filtrate produced by the kidneys each minute is called the
A) corpuscular output. B) autoregulation capacity. C) filtration ratio. D) net filtration pressure. E) glomerular filtration rate.