Female guppies usually choose brightly colored mates and over time, the population of guppies becomes more colorful. What type of selection is this?
A. Sexual selection
B. Natural selection
C. Disruptive selection
D. Stablilizing selection
Ans: A. Sexual selection
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True or False: If all other aspects of their lifestyles were equivalent, a vegetarian would have a smaller ecological footprint than someone who consumes a large amount of meat
A. true B. false
The somatic senses include all of the following sensations EXCEPT
a. balance b. pain near the body surface c. temperature d. touch e. pressure
Where is oxygen reduced with respect to Complex IV of the electron transport chain?
A) In the matrix itself, but close to a portion of Complex IV that extends into the matrix. B) Near the inner membrane space side of the membrane on the surface of Complex IV. C) Near the matrix side of the membrane on the surface of Complex IV. D) At a site buried in the protein, but connected to the transport of electrons by a line of water molecules. E) Freely in the hydrophobic portion of the lipid bilayer.
Cell structure, existing in pairs, that occurs in the centrosome and may help organize a mitotic spindle for chromosome movement during animal cell division.
What will be an ideal response?