Investigate sexual selection by completing the sentences.
What will be an ideal response?
Intersexual selection, or mate choice, can lead to the evolution of secondary sexual characteristics. This is because those characteristics, such as the plumage of a male peacock, make the individuals more attractive to the opposite sex. The potential benefits of mate choice for the chooser include increased parental investment from the chosen mate.
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The member of the domain Bacteria whose genome shows it to be most closely related to the Archaea is ________.
A. Synechococcus B. Thermotoga C. Aquifex D. Deinococcus
DNA probe technology identifies microorganisms by probing their genetic composition.
Answer the following statement true (T) or false (F)
The discovery of identical plant and animal fossils by Alfred Wegener in 1915 on either side of the Atlantic Ocean is
evidence of ____.
a. analogous structures b. catastrophism c. plate tectonics
d. comparative morphology e. the great chain of being
During an action potential,
a. sodium ions rush out of the cell, switching the potential to +35 mV. b. sodium ions rush into the cell, switching the potential to ?70 mV. c. sodium ions rush into the cell, switching the potential to +35 mV. d. sodium ions rush out of the cell, switching the potential to ?70 mV. e. sodium ions rapidly move in and out of different parts of the neuron, oscillating potential between ?50 and +35 mV.