Tropical rain forests occupy approximately ________ of the world's land area, but represent about ________ of Earth's species
A) 2%; 12% B) 7%; 50% C) 25%; 32% D) 12%; 65% E) 10%; 35%
B
You might also like to view...
In an autoimmune disease,
A. the body makes too few immune cells. B. memory cells are made. C. immune cells are attacked by pathogens. D. immune cells attack the body's own cells.
Exhaled breath from your mouth in cold weather produces ____ fog
A) radiation B) frontal C) advection D) evaporation (mixing)
Granite and gabbro have a similar ________
A) composition B) course-grained texture C) fine-grained texture D) vesicular appearance
What characterizes the first stage (preindustrial) of the demographic transition model?
a. high birth rates and high death rates resulting in negligible population growth b. high birth rates and low death rates resulting in high population growth c. low birth rates and low death rates resulting in negligible population growth d. low birth rates and high death rates resulting in declining population growth e. high birth rates and low death rates resulting in declining population growth