Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?

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#Question id: 1712

#SCPH05 I Biotechnology

The tingible bodies inside germinal center macrophages are:

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#Question id: 5036

#SCPH01 Biochemistry

 The experiments of Spemann and Mangold first defined what feature of amphibian embryos?

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#Question id: 19515

#SCPH05 I Biotechnology

Which of the following claims about electrochemical cells is true?

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#Question id: 11453

#I Life Science/ Life Sciences Group – I-V

Which type of receptor would you expect to be most abundant in the antennae of a moth?

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#Question id: 10931

#I Life Science/ Life Sciences Group – I-V

A 24-year-old African-American man comes to the emergency room 3 hr after the onset of severe back and chest pain. These problems started while he was skiing. He lives in Los Angeles and had a previous episode of these symptoms 5 years ago while visiting Wyoming. He is in obvious pain. Laboratory studies show the following:

Hemoglobin                                        11 gm/dl

Leukocyte count                                 22,000/μl3

Reticulocyte count                              25%

What is the diagnosis of this patient?