At extremely high temperatures (e.g., millions of degrees), which of the following best describes the phase of matter?
A) a gas of rapidly moving molecules
B) a plasma consisting of positively charged ions and free electrons
C) a gas consisting of individual, neutral atoms, but no molecules
D) a plasma consisting of rapidly moving, neutral atoms
E) none of the above (At these extremely high temperatures, matter cannot exist.)
Question 2
Human beings obtain energy from chemical reactions and carbon from other organisms. Given this, they can be classified metabollically as
A) photoheterotrophs
B) chemoheterotrophs
C) chemoautotrophs
D) photoautotrophs
Bipolar disease. The term bipolar means “pertaining to two poles.” The individual with this form of
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