The ciliary muscle of the eye changes the shape of the _______
Fill in the blank(s) with correct word
Answer: lens
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As the two strands of DNA are unraveled, which enzyme relieves the strain on the two strands?
A. DNA polymerase B. DNA ligase C. DNA gyrase D. DNA endonuclease E. DNA exonuclease
Light behaves as a stream of discrete particles called ________, each carrying a ________ (indivisible packet) of energy.
Fill in the blank(s) with the appropriate word(s).
Tamiflu is a common medication given for influenza treatment. It works by protecting and blocking sialic acid molecules on the surfaces of host cells and influenza virus envelopes as they leave the cell. Which statement reflects the mechanism of Tamiflu's action?
A. Tamiflu interferes with the metabolic properties of the virus. B. Tamiflu interferes with the release of the budding viruses from the infected host cells. C. Tamiflu interferes with the replication of +ssRNA from the -ssRNA genome of the flu virus. D. Tamiflu blocks protein synthesis of the viral genome.
Which of the following plants is NOT a
gymnosperm? a. cycad b. conifer c. palm d. ginkgo e. gnetophyte