Which of the following was a result of reintroducing wolves to Yellowstone National Park in 1995?
a. The number of carrion species increased.
b. The park’s overall biodiversity declined.
c. The park’s coyote population increased.
d. Vegetation along streams declined.
a. The number of carrion species increased.
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The cap on the 3' end of mRNA helps attach the mRNA to the ribosome. Indicate whether the statement is true or false
What situation relates to the reason why hot-air balloons are able to fly?
A) Precipitation falls on the leeward side of a mountain. B) Water droplets can freeze inside clouds. C) Very little rain falls at 30° north and south of the equator. D) The tops of hills are warmer than the valleys below.
In mutant bacteria that cannot complete DNA replication, Okazaki fragments accumulate but are never joined together. Which enzyme is likely to be affected by the mutation?
a. initiator proteins b. helicase c. primase d. DNA ligase
During a stay in the hospital, an accident victim develops symptoms of bacteremia. A blood sample shows the presence of Gram-positive cocci in pairs. Lab tests determine that the bacteria are nonhemolytic and bile salt tolerant. The bacteremia is likely due to
A) Enterococcus. B) Mycoplasma. C) Staphylococcus. D) Streptococcus. E) Listeria.