Category: Uncategorized

Which of the following is true about top predators?

Normal Borlaug, who passed away in 2009, pioneered the development of ________.   A) organic agriculture B) IPM C) GM crops D) high-yield wheat E) monoculture farming

Globally, approximately how many people are undernourished? A) 1 million B) 1 billion C) 800 thousand D) 800 million

Which of these best describes the latitudinal gradient in species richness? A) There tends to be a greater number of species in ecosystems closer to the equator. B) There tends to be a greater number of species in midlatitudes. C) There tends to be a greater number of species in ecosystems farther from the equator. D) The number of species is generally consistent across all latitudes.

Per capita meat consumption has ________ since 1950. A) dropped by 50% B) doubled C) tripled D) increased by 50%  

Clear-cutting ________. A) restricts timber harvesting to mountaintops B) is harvesting trees from coastal areas only C) involves elimination of subsidies to farmers D) is a form of violent protest favored by radical environmental organizations E) removes all trees from an area

The loss of a particular population from a given area (but not the entire species globally) is called ________.   A) extinction B) extirpation C) emigration D) extinguishment E) exposition

The causes of the current (sixth) mass extinction include all of the following EXCEPT ________. A) habitat alteration and destruction B) invasive exotic species C) pollution from pesticides, eutrophication, and other causes D) earthquakes, tsunamis, and forest fires E) global climate change

Which term means “receiving fewer calories than the minimum dietary energy requirement”? A) Undernutrition B) Overnutrition C) Food security D) Malnutrition

Land trusts are ________.   A) municipal government entities B) state government entities C) federal government entities D) corporations E) private nonprofit groups