The Ediacaran fauna include representatives of the modern phyla ____
A)Proterozoa, Annelida, and Arthropoda
B)Annelida, Arthropoda, and Cnidaria
C)Proterozoa, Porifera, and Cnidaria
D)Coelenterata, Annelida, and Cnidaria
E)Coelenterata, Proterozoa, and Porifera
B
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Affluenza is a term coined by some social critics for the current drive to possess more and more stuff.
Answer the following statement true (T) or false (F)
In theory, what are free-market economies based upon?
a. The supply of products b. The consumption of products c. Pure competition d. Government policies
The international date line is located in Europe
Indicate whether the statement is true or false
Warming temperatures melt ice cover, exposing a darker surface that absorbs more solar radiation. In response, the air warms even further. This is an example of:
A) a positive feedback mechanism. B) a stable-feedback mechanism. C) a negative feedback mechanism. D) a variable-feedback mechanism.