A mother brings a child into the ER with a severe nosebleed that won't stop bleeding. She also tells the doctors that the child bruises very easily in response to very minor accidents. Given the information in the text, the doctor orders some tests and

finds that the young boy has ________.

A) leukemia B) hemophilia C) embolus D) anemia


Answer: B

Biology & Microbiology

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Euglena and dinoflagellates have chloroplasts and flagella. This indicates they are

A. multicellular. B. mobile. C. photosynthetic. D. photosynthetic and mobile. E. multicellular and mobile.

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When a neuron is not being stimulated, its

membrane potential is classified as

a. resting potential. b. threshold potential. c. action potential. d. inactive potential. e. inhibitory potential

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Sensory receptors found in the ear are

a. chemoreceptors. b. mechanoreceptors. c. photoreceptors. d. none of the above.

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__________ is one form of learning that happens only during a sensitive period early in life. Fill in the blank(s) with the appropriate word(s)

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