Multiple Choice
The economic value of pollinator services for U.S.agriculture is billions of dollars per year.Eighty percent of all flowering plant species depend on pollination; insect pollinators are required for most fruit and vegetable crops.However, many pollinators are currently declining because of habitat destruction and pesticide use.What ecosystem-related trade-off has occurred in this situation?
A) Effective pollination was traded for habitat destruction and pesticide use.
B) Effective pollination was traded for a profit from pollination.
C) Lack of pollination was traded for effective pollination.
D) Habitat destruction and pesticide use were traded for artificial pollination by humans.
E) Natural pollination was traded for artificial pollination by humans.
Correct Answer:

Verified
Correct Answer:
Verified
Q222: Energy from the sun controls the hydrologic
Q223: About 90 percent of the water in
Q224: According to the second law of thermodynamics,
Q225: Compared with the open ocean ecosystem, the
Q226: Primary consumers on land consume an average
Q228: In the food chain shown below, which
Q229: A coastal ecosystem is devastated by a
Q230: In a salt marsh, marsh grasses carry
Q231: The San Francisco Bay area was once
Q232: During which process of the hydrologic cycle