Hypotheses explaining the development of autoimmune disease include

A. molecular mimicry.
B. genetic factors.
C. overuse of vaccines.
D. genetic factors and vaccines.
E. molecular mimicry and genetic factors.


Answer: E

Biology & Microbiology

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Soredia are:

A. sexual reproductive bodies of lichens B. asexual spores of mushrooms C. mycelia of crustose lichens D. identical with conidia E. clumps of hyphae and algae that disperse lichens

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Which of the following enzymes converts chemical bond energy to light energy in bioluminescent organisms?

a. oxyluciferin b. luciferase c. pepsin d. luciferin

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Gluten-free food options are becoming more and more common place due to the increased incidence and awareness of celiac disease in the US population. If a person with this disease eats foods containing gluten, the immune system responds by attacking and damaging or destroying his/her own villi. What digestive symptom would NOT be consistent with greatly-reduced numbers of villi?  

A.  abdominal bloating and pain B.  chronic diarrhea C.  weight loss D.  peptic ulcer E.  fatty stools Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the function of villi? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · 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?

Biology & Microbiology

How many covalent bonds can an individual carbon atom form?

a. 1 b. 2 c. 4 d. 8

Biology & Microbiology