Geologic records indicate that the earth has experienced perhaps ________mass extinction(s) where up to ______________percent of the species disappeared
a. 1, 50
b. 5, 95
c. 1, 95
d. 3, 75
e. 3, 50
B
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Which of the following is NOT a typical environment in which a sedimentary rock forms?
A. river channels B. heating next to a magma C. beside glaciers D. shoreline of a lake E. deep seafloor
The greatest number relating to both known and yet-to-be-discovered species are types of
A) animals. B) plants. C) fungi. D) mammals.
Which of the following most accurately characterizes the goal of geography?
A) The production of maps. B) Memorization of the names of places on world and regional maps. C) Memorization of the imports and exports of a country. D) Understanding distributions and movements across Earth.
The synthesis of cholesterol begins with the sequential condensation of how many molecules of acetyl CoA
A) 1 B) 2 C) 3 D) 4