Only 20% to 30% of the energy stored in the chemical bonds of gasoline molecules is transformed into
mechanical energy; the other 70% to 80% is dissipated as waste heat. Which statement explains this
phenomenon?
a. The first law of thermodynamics.
b. The second law of thermodynamics.
c. When energy is converted from one form to another, some of the energy is converted into
heat.
d. Both the first and second laws of thermodynamics.
e. Both the second law of thermodynamics, as well as the observation that the conversion of
energy involves some energy being converted to heat.
E
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Reinforcement refers to the development of ________-zygotic factors and is typically more rapid in species living in __________
A. pre; allopatry B. pre; sympatry C. post; allopatry D. post; sympatry
The above figure represents which of the
following? a. simple diffusion b. bulk flow c. osmosis d. phagocytosis e. endocytosis
Which of the following is true about the cell-wall-less archaeal genus Thermoplasma?
A. They are filamentous at temperatures at 59°C and higher. B. They are spherical at temperatures below 59°C. C. They are spherical at temperatures below 59°C and they are filamentous at temperatures at 59°C and higher. D. They are nonmotile.
Gs? nucleotide exchange is stimulated by a ________, whereas Ras nucleotide exchange is stimulated by ________
Answer: GPCR/EGF receptor; Sos