Unsectioned specimens can be used in which type of microscope?

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#Question id: 10877

#Unit 7. System Physiology – Animal

A 27-year-old man is breathing quietly. He then inhales as much air as possible and exhales as much air as he can, producing the spirogram shown in the previous figure. What is his expiratory reserve volume (in liters)? 

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#Question id: 19900

#Unit 12. Applied Biology

Which one of the following is a sensor?

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#Question id: 9211

#Unit 9. Diversity of Life Forms

Of the following ecosystem types, which have been impacted the most by humans?

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#Question id: 15381

#Unit 8. Inheritance Biology

Neurofibromatosis is a condition in humans which is generally inherited in a dominant fashion. Assuming this disorder is 90% penetrant, what is the chance that a single child born to a father with neurofibromatosis and a mother known not to carry the mutation will have the disorder?

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#Question id: 20385

#Unit 13. Methods in Biology

PCR primer dimers are formed when