Blood is pumped from the heart into the arterial system, which branches from arteries into fine _________.
A. arterioles
B. veins
C. capillaries
D. venules
A. arterioles
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If a patient is missing B and T cells, what would be absent from the immune response?
A) memory B) lysozymes C) cytokines D) defense against bacteria
Plant cuticles, which reduce water loss, are primarily made of:
a. steroids b. triglycerides c. oils d. waxes e. fats
Marine plants may contribute to the prevention of algal blooms by:
a. trapping sediments. b. absorbing excess nutrients. c. removing toxic organic pollutants. d. producing detritus. e. blocking sunlight.
As new enzymes are discovered, the EC system for naming enzymes is to be used. The names are to be based on which of the following criteria?
A) the name of the substrate B) a description of substrate function C) an indication of the size of the substrate D) the six major classes of enzyme function E) the size of the enzyme