Different insect species may not pollinate a plant because of the shape or color of its flowers. This is best described as ________
A) reproductive isolation
B) structural isolation
C) behavioral isolation
D) disruptive isolation
E) geographic isolation
Answer: B
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A. Is impossible because there are so many green products and advertisements on the market B. Is relatively easy because of the information provided on labels C. Is futile because it does not have an impact D. Is something few people are interested in E. Requires attention and is important in determining future actions by companies
Every year, the United States generates enough municipal solid waste to fill a bumper-to-bumper convoy of garbage trucks long enough to circle the earth's equator almost six times.
Answer the following statement true (T) or false (F)
China's population
A) has a uniform density across the nation B) is currently second largest in the world C) is roughly 10% urban D) decreases in density as you travel from east to west E) is denser on average than Japan
Isotopes of the element _______ are used to reconstruct past glacial and interglacial stages. Fill in the blank(s) with the appropriate word(s)