The information of an energy pyramid reveals that for human food choices,
A) it is more expensive and less efficient to get most of your dietary calories from meats.
B) it is more expensive and less efficient to get most of your dietary calories from grains.
C) consumers at lower trophic levels do not have as much energy and biomass as consumers at higher trophic levels.
D) consumers at higher trophic levels are usually more abundant than consumers at lower trophic levels.
A
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Name and describe the three types of major volcanoes (exclude lava domes and continental calderas). Identify their rock composition, shape, and the viscosity and composition of the magma that created them
What will be an ideal response?
In which of the following molecules does the carbon atom have a nearly tetrahedral distribution of electron density?
A) C2H2 B) C2H4 C) C2H6 D) none of these
Incoming solar radiation in middle latitudes is less in winter than in summer because the Sun’s rays slant more and spread their energy over a larger area
a. True b. False
The yearly rate of tectonic plate movement is best measured in
A. meters. B. centimeters. C. kilometers.