When water activity is low, an organism must
A) increase its internal solute concentration.
B) increase its external solute concentration.
C) decrease its internal solute concentration.
D) decrease its external solute concentration.
Answer: A
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When studying fluid and electrolyte loss during exercise, Robert Cade found that human sweat has sodium and chloride concentrations that are
A. higher than those found in the blood. B. lower than those found in the blood. C. equal to those found in the blood. D. extremely variable from person to person relative to those found in the blood.
The rate at which an animal consumes energy at rest is called _______.
A. glycogenolysis B. gluconeogenesis C. the basal metabolic rate D. rumination E. fermentation
Skeleton muscles are attached to bones by cords of connective tissue called tendons
Indicate whether the statement is true or false.
Reference is often made to adapter molecules when describing protein synthesis in that they allow amino acids to associate with nucleic acids. To what class of molecules does this term refer?
What will be an ideal response?