Which of the following reasons explain why bacteria can continually divide?
A. Because they are so simple.
B. Because their DNA is circular so it never
shortens after replication.
C. Because DNA replication is much quicker
in bacteria than in eukaryotes.
D. Because they have plasmids.
E. Because they only have one chromosome.
B
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Eyelids form and eyes open during which month of human development?
a. first month b. third month c. fifth month d. seventh month e. ninth month
Which of the following are greenhouse gases?
A. oxygen and nitrogen B. nitrogen and carbon dioxide C. methane and carbon dioxide D. carbon dioxide and oxygen E. oxygen and methane
A compound contains hydroxyl groups as its predominant functional group. Which of the following statements is true concerning this compound?
a. It should dissolve in water. b. It won't form hydrogen bonds with water. c. It lacks an asymmetric carbon, and it is probably a fat or lipid. d. It is hydrophobic. e. It should dissolve in a nonpolar solvent.
Which of the following scientists detailed a mechanism for species change over time called the inheritance of acquired characteristics?
A. Georges-Louis Leclerc B. Erasmus Darwin C. Jean-Baptiste Lamarck D. James Hutton