Compared to viewing a distant object, a human viewing an object held within five centimeters of the eye requires a lens that _____
A) has been flattened, as a result of contraction of the ciliary muscles
B) has been made more spherical, as a result of contraction of the ciliary muscles
C) has been flattened, as a result of relaxation of the ciliary muscles
D) has been made more spherical, as a result of relaxation of the ciliary muscles
E) does not change its shape
Answer: B
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Methylmalonic acidemia is caused by _____
A. an overdose of ethylene glycol B. fat accumulation in white blood cells C. defective liver enzymes D. the inability to metablolize amino acids and fats E. destruction of myelin sheaths surrounding nerves
An atom X contains 14 protons, 13 electrons, and 12 neutrons, and atom Y contains 14 protons, 14 electrons, and 12
neutrons. What can you conclude? a. Y is an ion but X is not. b. X and Y are both ions. c. X and Y both have filled valence shells. d. X and Y are isotopes of the same element. e. X and Y are atoms of the same element.
Select the best response to the question. ?Which of the following is a clinical indication for the use of a broad spectrum antibiotic?
A) The pathogen is virulent. B) The pathogen has not yet been identified. C) The pathogen is anaerobic. D) The host is immunocompromised.
What number is the Lipoteichoic acid?
What will be an ideal response?