« previous next »

Author Question: The earth is approximately how many years old? a. 1 billion. b. 9 million. c. 4.5 billion. ... (Read 82 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jun 22, 2018
The earth is approximately how many years old?
 
  a. 1 billion.
  b. 9 million.
  c. 4.5 billion.
  d. 13.5 million.

Question 2

_____________ is the relationship when a male mates with numerous females.
 
  a. Polygyny.
  b. Monogamy.
  c. Polyandry.
  d. Symbiosis.


Gabe

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jun 22, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Earth’s Major Tectonic Plates Earth’s Major Tectonic Plates
The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the
A levallois core from Kapedo Tuffs, Kenya dates about 130,000 years ago. A levallois core from Kapedo Tuffs, Kenya dates about 130,000 years ago.
The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens. The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens.
Shifts between Warm and Cold Periods during the Last 3 Million Years Shifts between Warm and Cold Periods during the Last 3 Million Years
Earth day kids Earth day kids
Video: Effect of blood chemistry - stimuli, hyperventilation response and hypoventilation response

For a complete list of videos, visit our video library