Along the shoreline of a pond, Canadian geese, American toads, and grass frogs search for food while bluegill and bass prey on small fish in the shallow water. These species, living and feeding in this particular location, represent one
A) species.
B) population.
C) community.
D) ecosystem.
C
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What kind of pollution source is a golf course that produces runoff with high nitrogen concentrations?
What will be an ideal response?
Which of the following pr°Cesses increases the environmental lapse rate?
A. cold advection at higher altitudes and daytime solar heating B. warm advection at higher altitudes and daytime radiational cooling C. daytime solar heating and surface radiational cooling D. cold advection at higher altitudes and surface radiational cooling
In the diagram below, C is the
A. benthic zone. B. mesopelagic zone. C. epipelagic zone. D. hadal zone.
The Keeling graph, although it has yearly oscillations, shows that the concentration of CO2 in the atmosphere ________.
A. is remaining constant. B. is steadily rising. C. is slowly decreasing. D. has sharp increases about every five years.