The Baltimore Scheme to classify viruses contains a total of ________ groups based on ________
A) four / genome composition
B) four / genome composition and transcription mechanism
C) seven / genome composition
D) seven / genome composition and transcription mechanism
Answer: D
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In a prokaryotic cell, the DNA can be found where?
a. nucleoid b. nuclear membrane c. nucleus d. chromatin
In a lake, the open sunlit water with its suspended phytoplankton is referred to as which zone?
a. pelagic b. limnetic c. littoral d. profundal e. benthic
How many questions are needed in this dichotomous key to determine if the unknown is Bacteroides?
a. Four b. Three c. Five d. Two
Which of the following best describes a biome?
A) three different classes of ecosystems based on high, medium, or low rainfall B) three different classes of ecosystems based high, medium, or low temperature C) small terrestrial regions with similar climate and the similar communities of organisms D) large terrestrial regions with similar climate and similar types of plant life