« previous next »

Author Question: America's indigenous peoples were the first cultivators of what percentage of the crops grown in the ... (Read 54 times)

Lobcity

  • Hero Member
  • *****
  • Posts: 524
on: Aug 11, 2018
America's indigenous peoples were the first cultivators of what percentage of the crops grown in the world today?
 
  a. 10
  b. 30
  c. 60
  d. 80

Question 2

Over the course of our evolutionary history, most environmental stressors were climatic and geographic. Now, however:
 
  a. humans have little environmental stressors, climatic or geographic.
  b. nonhuman primates have more stressors than humans.
  c. humans face a series of new environmental stressors of their own making.
  d. humans also face daily weather stressors.
  e. humans have climatic stress, but geographical stress has been removed because of technology.


ErinKing

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Aug 11, 2018
Answer to Question 1

c

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Tree species richness in North America is correlated with evapotranspiration rate. Tree species richness in North America is correlated with evapotranspiration rate.
A statue of a corn goddess of the Moche peoples of coastal Peru, around 400 BP. Within several centu A statue of a corn goddess of the Moche peoples of coastal Peru, around 400 BP. Within several centu
Climate of Latin America Climate of Latin America
Indigenous Populations Indigenous Populations
Air-Mass Source Regions for North America Air-Mass Source Regions for North America
South American Indigenous Woman and Child South American Indigenous Woman and Child
Video: Egg and Sperm Formations in Animals Animation

For a complete list of videos, visit our video library