What is the evidence that exists to support the idea that the greater area of the tropics is the reason for higher diversity?
A) The land mass is greater at the equator than elsewhere on Earth.
B) The area of the Atlantic Ocean is greater at the equator.
C) There are more mountainous areas in the tropics, creating more surface area.
D) The area between 0° and 10° is greater than between 60° and 70° latitude.
D
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When a muscle fiber is relaxed, myosin cannot bind to actin because ____
a. ATP is not present b. the myosin binding site on actin is blocked c. the myosin head is in the wrong shape for binding d. the actin is in the wrong orientation for myosin binding e. the myosin head is 180 degrees from its attachment configuration
Based on industrialization, which region of the United States is most affected by acid rain?
a. northwest b. southwest c. northeast d. southeast e. central plains
Winogradsky columns are useful in enriching for ________ microorganisms
a. aerobic b. anaerobic c. facultative anaerobic d. All of the above choices are correct.
The Embden-Meyerhof, Entner-Doudoroff and pentose phosphate pathways all bring about the reduction of coenzymes (either NAD+ or NADP+). The reduced coenzymes ________.
A. are converted into ATP for energy B. serve as precursor molecules for anabolic reactions C. can no longer be oxidized D. provide reducing power to fuel subsequent reactions