« previous next »

Author Question: Which best describes rates of population growth until a few hundred years ago? a. cycles of ... (Read 14 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
on: Jul 2, 2018
Which best describes rates of population growth until a few hundred years ago?
 
  a. cycles of growth and then decline under Malthusian pressures
  b. constant growth
  c. very fast growth
  d. none of the above

Question 2

About how many hunter-gatherers at any give time were living on Earth during the first 120,000 years of human existence?
 
  a. about 3-5 million
  b. about 100 million
  c. about 200 million
  d. about 300 million
  e. about 400 million


Ahernandez18

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 2, 2018
Answer to Question 1

a. cycles of growth and then decline under Malthusian pressures

Answer to Question 2

a. about 3-5 million


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

The Dingo was the first placental mammal introduced to Australia, around 4000 years ago The Dingo was the first placental mammal introduced to Australia, around 4000 years ago
To examine a child’s ear, the pinna should be pulled back and up for children over 3 years; the pinn To examine a child’s ear, the pinna should be pulled back and up for children over 3 years; the pinn
bone growth bone growth
A genetic bottleneck reduces a population temporarily to very low levels, removing much of its genet A genetic bottleneck reduces a population temporarily to very low levels, removing much of its genet
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
The rates of police reported sexual offences The rates of police reported sexual offences
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library