A hypothesis that explains how new organisms or new characteristics can appear suddenly in the fossil record is called
A. evolution.
B. punctuated equilibrium.
C. natural selection.
Answer: B
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Having to choose between science and religion is unnecessary
A. since you know which is right and which is wrong. B. when you hold fast to the courage of your convictions. C. because both operate in different realms. D. none of the above
Belgium is divided ethnically into a Dutch-speaking north and a French-speaking south. Because one group or the other has been seeking greater autonomy, Belgium is an example of a country plagued by:
A) civil war B) "Trabis" C) genocide D) separatist movements
What system hosts more biodiversity than any other ecosystem in the oceans?
Which of the following amino acids will exist as a -2 ion at very high pH?
A) arginine B) glutamic acid C) isoleucine D) none of these