If you eat a salmon that had fed on smaller fish, which in turn had fed on plants, you would be a ____________ consumer
a. primary
b. secondary
c. tertiary
d. tropic
e. pyramid
C
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Two 100 W lightbulbs are to be connected to a 120 V source. What is the current, potential difference, and dissipated power for each when they are connected:
(a) in parallel (the normal arrangement)? (b) in series?
Comparing the densities of the Moon and Mercury, we find:
A) the Moon is slightly denser than Mercury. B) similar in surface appearance, they are also similar in density. C) that density increases as we go outward from the Sun. D) the Moon's is similar to Earth's crust, while Mercury's is similar to the entire Earth. E) both are much denser than our water-covered planet.
Triesters of long-chain acids with glycerol are called
a. condensation polymers. b. fats. c. soaps. d. synthetic detergents.
A compound consists of only magnesium, carbon, and oxygen. If the percentage by mass of Mg is 63.9% and that of C is 12.2%, what is the percentage by mass of O?
a. 76.1% b. 23.9% c. 51.7% d. 70.9% e. None of the above