Describe the three groups of living organisms in marine ecosystems (categorized based on where or how they live), providing an example of each
Plankton (phytoplankton, zooplankton) are small plants and animals that float freely with the ocean currents. Nekton (fish, squid, reptiles, mammals) are swimming animals. The benthos (corals, sponges, algae) are plants and animals that live on the ocean floor.
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The average salinity of the world ocean is about ____
A) 52% B) 35% C) 21.5% D) 3.5%
Describe how deforestation affects the concentration of CO2 in the earth's atmosphere
What is the difference between magma and lava?
A. Lava is above the Earth's surface, whereas magma is below. B. Magma is colder than lava. C. Lava is gassier than magma. D. Magma has a higher silicate content than lava. E. There is no difference between magma and lava.
What is the source of suburbanization?
A) combination of free market and government B) government C) free market D) command economy E) random chance