Darwin's book in which he described his views on evolution is:
A. Survival of the Fittest.
B. On the Principle of Population.
C. On the Origin of Species.
D. Principles of Geology.
Answer: C
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Which one of the following is the photosensitive protein that converts the energy of photons into electrical signals in the receptor cell?
A. opsin B. retinal C. chlorophyll D. organ of Corti
The process by which the major land masses have shifted their positions, changed shapes and separated from each other, is known as
A. Cotranslational sorting. B. Continental drift. C. Depolarization of land masses. D. Differential land movement. E. Cyclic land drift.
The process that moves nutrients into the blood or lymph is
a. absorption. b. assimilation. c. digestion. d. ingestion. e. elimination.
The complete failure of which of the following organs or organ systems does NOT necessarily lead to a quick death?
A) respiratory system B) heart C) digestive system D) brain E) cardiovascular system