« previous next »

Author Question: America's indigenous peoples were the first cultivators of what percentage of the crops grown in the ... (Read 56 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?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Graph showing the relationship between the freezing point of the coolant and the percentage of ... Graph showing the relationship between the freezing point of the coolant and the percentage of ...
Distribution of zebra and quagga mussels in North America in 2014 Distribution of zebra and quagga mussels in North America in 2014
World Regions in Global Context: Peoples, Places, and Environments World Regions in Global Context: Peoples, Places, and Environments
North America American Dagger Moth Caterpillar North America American Dagger Moth Caterpillar
Nutrias native to South America are abundant in freshwater marshes of the Gulf States. Their populat Nutrias native to South America are abundant in freshwater marshes of the Gulf States. Their populat
Laboratory-Grown Stem Cells Laboratory-Grown Stem Cells
Video: How a Urinalysis is Performed

For a complete list of videos, visit our video library