The virus genome and viral proteins are assembled into virions (virus particles) during _____
A) the lytic cycle and the lysogenic cycle in all known host organisms
B) the lysogenic cycle only
C) the lytic cycle only
D) the lytic cycle in all host organisms but the lysogenic cycle only in bacteria
Answer: C
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The question of whether animal eyes have evolved independently in different organisms or have evolved once from a single organism and then diverged over time is still being actively investigated by evolutionary scientists
A. true B. false
A rain shadow is created when ____
a. cool air descends and replaces warm air over land through onshore flow b. wind direction reverses seasonally c. cool air descends and replaces warm air over the sea through offshore flow d. dry air on the windward side rises and absorbs water on the leeward side, such that the leeward side remains dry e. mountains force air to sink and absorb water on the windward side, causing the leeward side of the mountains to receive excessive rainfall
When new species move into a wide range of habitats during microevolution, it is known as ____
a. adaptive radiation b. natural selection c. genetic drift d. mass extinction e. minor extinction
Which of the following does NOT constitute an advantage of using two antibiotics together?
A) It can prevent drug resistance. B) It lessens the toxicity of individual drugs. C) Two are always twice as effective as one. D) It allows treatment to be provided prior to diagnosis. E) All of these are advantages of using two antibiotics together.