Variation is always present in populations because ____
a. alleles control multiple genes
b. genes blend during inheritance
c. alleles blend during inheritance
d. genes are reshuffled by reproduction and altered by mutations
e. new traits develop when traits that are not expressed are lost
d
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Suppose the absolute temperature of an object doubles. By which of the following factors will the maximum energy emitted increase?
A. 16 B. 4 C. 2 D. 8
A seismic station records an earthquake that has a maximum surface wave amplitude of 1 mm and the S-wave arrives 2 seconds after the P-wave. The Richter magnitude of this earthquake is
A) 1. B) 1.5. C) 2. D) 2.5.
What is the only true, undistorted representation of Earth?
A. map B. satellite image C. globe D. remotely sensed image E. none of these
Maps are inherently inaccurate because ________
What will be an ideal response?