Plasma from a sick mouse is filtered across a membrane that has a 200 nm pore size. If the filtrate is still infectious when injected into a healthy mouse, then the pathogen is most likely a(n)
A. archaean.
B. parasitic worm.
C. bacterium.
D. fungus.
E. virus.
Answer: E
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You have a patient who complains of pain in his joints. You ask whether he drinks much water during the day and find out he does not. You therefore suspect conversion of his usual nitrogenous waste ___________ into ____________, followed by deposition into his joints.
A. ammonia, urea B. urea, ammonia C. uric acid, urea D. urea, uric acid E. uric acid, ammonia
All coastal shores have one feature in common: they are alternately exposed and submerged by the ________
Fill in the blank(s) with correct word
Refer to Figure 31-3. The structures labeled 1 are used for:A
feeding.
B. reproduction.
C. attachment.
D. movement.
E. protection.
In glycolysis, for each molecule of glucose oxidized to pyruvate _____
A) two molecules of ATP are used and two molecules of ATP are produced. B) two molecules of ATP are used and four molecules of ATP are produced. C) four molecules of ATP are used and two molecules of ATP are produced. D) two molecules of ATP are used and six molecules of ATP are produced.