Some glycerophospholipids are commonly called lecithins. Which of the following is found in all lecithins?
A) choline
B) ethanolamine
C) inositol
D) serine
A
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Convergent boundaries are areas of
A. tensional forces that stretch the crust and generate a spreading center. B. plate collision. C. compressional forces that crunch the crust and generate a spreading center. D. crustal formation.
According to Newton, the closer gravitationally interacting objects are to each other, the
A. force is unchanged. B. more uncertain the force between them. C. less the force between them. D. greater the force between them.
Fossil fuels represent
A) a large amount of Paleozoic and Mesozoic biomass buried anaerobically millions of years ago. B) natural deposits of organic materials that formed long before life on Earth evolved. C) the remains of fossil animals that lived a few thousand years ago. D) sustainable sources of energy that are underused today.
The horizontal convection that transfers heat towards the poles is known as ________.
A. advection B. convection C. adduction D. conduction