Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
This question asked you to analyze why some obese people are resistance to leptin. If you got the
correct answer, great job! If you got an incorrect answer, where did the process break down? Did you
think that leptin was a paracrine signal instead of endocrine? Did you think that leptin was a second
messenger or kinase?
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Streptococcus pyogenes can be easily distinguished microscopically from other Streptococcus species
Indicate whether this statement is true or false.
Which of the following are the three most common sites for healthcare-associated infections?
a. bloodstream b. surgical sites c. central nervous system d. urinary tract e. skin f. respiratory tract
What is the definition of a carcinoma?
A. A cancer that is derived from skin or epithelial linings of internal organs or glands B. A cancer that is derived from muscle, fat, and soft tissues C. A cancer that is derived from blood and lymphatic systems D. A cancer that is derived from brain and spinal tissue
After seeds were planted, some of the seedlings did not emerge from the soil. Is it possible they did not grow because some of the seeds were planted upside down?
A) No; sunlight penetrates soil to the depth of seeds and shoots grow toward the sunlight. B) No; gibberellins and abscisic acid, in balanced concentrations, cause shoots to grow away from gravity. C) No; auxins in the shoots cause curvature away from gravity. D) Yes; after seeds are planted, water and settling of the soil may cause them to shift in their orientation. E) Yes; if the seed was oriented so that the embryonic shoot pointed down, it would grow in that direction because sunlight doesn't reach it.