Vlad, 28 years old, is a slender, jumpy man with eyes that seem to bulge out of their sockets. His heart rate is unusually fast. Which of the following conditions does Vlad most likely have?
A) Cushing's syndrome B) Graves' disease
C) acromegaly D) Addison's disease
Answer: B
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Assuming exposure to the same climate, which of the following aquatic systems would be MOST stratified?
A) 20 m deep freshwater river B) 50 m deep marine water fjord C) 200 m deep saltwater lake D) 300 m deep freshwater lake
A graduate student is studying the distribution of auxin in roots and stems exposed to sunlight
He notices that more auxin collects in the sides of stems and roots that are not exposed to light; however, the effects of this distribution are very different. Why? Select all correct choices. A. Auxin prevents cell elongation in the shaded cells of stems. B. Auxin (via ethylene) promotes cell elongation in the shaded cells of roots. C. Auxin (via ethylene) prevents cell elongation in the shaded cells of roots. D. Auxin promotes cell elongation in the shaded cells of stems.
What is difference between an epidemic and a pandemic?
A) An epidemic is a disease; a pandemic is a treatment. B) An epidemic is restricted to a local region; a pandemic is global. C) An epidemic has low mortality; a pandemic has higher mortality. D) An epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.
The targeting of specific sequences in the DNA for removal or replacement is best described as
A. genomics. B. proteomics. C. gene therapy. D. genome editing. E. cloning.