Author Question: The fact that life expectancy has increased significantly over the past 60 years in developing ... (Read 50 times)

biggirl4568

  • Hero Member
  • *****
  • Posts: 551
The fact that life expectancy has increased significantly over the past 60 years in developing nations is primarily a result of the
 
  A) epidemiologic transition.
  B) cultural transition.
  C) demographic transition.
  D) socioeconomic transition.

Question 2

Which of the following best describes crown fires?
 
  A) They create a mosaic of successional stages in an ecosystem.
  B) They decrease biodiversity by eliminating species that are fire resistant.
  C) They increase the later stages of succession.
  D) They are not a natural factor in undisturbed ecosystems.



fauacakatahaias

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

For a complete list of videos, visit our video library