____________ include many different photosynthetic and chemosynthetic species that are responsible for contributing
to primary production. They drift or swim weakly, going where the ocean goes; whereas, ____________ can actively
swim. Fill in the blank(s) with the appropriate word(s).
Plankton; nekton
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Of the following, which was domesticated in the Old World and introduced to the New World?
A) corn B) potatoes C) tomatoes D) wheat
Gravitational attraction between two bodies
A. gets weaker with increasing distance between them. B. is described by Newton's equation for gravity. C. extends to the far reaches of the universe. D. all the above
Which of the following locations would best represent a storm track characterized as bringing cold moist air to inland Canada?
A. A B. B C. C D. D E. E
The zone of ablation is _____
a. the high latitudes b. upslope from the cirque c. a feature of continental glaciers, but not alpine glaciers d. the area downslope of the equilibrium line e. underneath the firn and snow