The injectable pain-killing drug called Prialt is an improvement over morphine-type drugs because it:

a. can easily be extracted from cone snails
b. is less expensive to produce than morphine
c. also removes the memory of pain from the affected person
d. is not addictive
e. is from invertebrates


d

Biology & Microbiology

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If the hypothesis stating viruses evolved prior to living organisms on Earth is true, the first type of viruses in the world were likely

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A circulatory system that allows some mixing of

oxygenated and oxygen-poor blood is indicated by a. A. b. B. c. C. d. A and B. e. all of these.

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Retroviruses have all of the following characteristics except ________.

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When bones undergo repair, the process begins with the formation of a blood clot known as a(n) ________

Fill in the blank(s) with correct word

Biology & Microbiology