Blood flow is affected by
a. pressure differences
b. the viscosity of the blood
c. the amount of friction in the blood vessels
d. the length and diameter of the blood vessels
e. all of the above
E
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A gene is
A. a DNA sequence that contains the information for producing one type of protein. B. the collection of all of the protein-encoding DNA sequences on a particular chromosome. C. an amino acid sequence that contains the information for producing a particular DNA sequence. D. a structure that contains chromosomes.
The white muscles of fish are organized into units of parallel layers derived from internal segments of the embryo called __________
Fill in the blank with the correct word.
Classify sodium balance in the human body
A) acid-base balance B) fluid balance C) electrolyte balance D) pH balance
A first-class lever has its fulcrum between the force and the resistance.
Answer the following statement true (T) or false (F)