Life on Earth exhibits both unity and diversity. The unity refers to the idea that ____
A) ?Earth may house as many as 100 million different species of living organisms
B) ?all life depends on saline water within its cells to dissolve and transport chemicals
C) ?all species share the same underlying mechanisms for capturing and storing energy between generations
D) ?life on Earth is formed of carbon compounds transported to Earth by comets, asteroids, and meteors
C
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Which of these four numbered features on the surface or in a cave is a stalagmite?
A) 1
B) 2
C) 3
D) 4
E) None of these are correct.
How and when did Florida form? What will be an ideal response?
In general, the Sun's energy output increases when there are large numbers of sunspots
Indicate whether the statement is true or false
When did the U.S. begin to experience a trade deficit?
A) 1770s B) 1860s C) 1920s D) 1970s E) 1990s