This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are periods the most fundamental time unit? What will be an ideal ... (Read 21 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
on: Jul 29, 2018
Why are periods the most fundamental time unit?
 
  What will be an ideal response?

Question 2

The Precambrian witnessed the development of
 
  A) the first atmosphere.
  B) the ozone layer.
  C) photosynthesis.
  D) photosynthesis, an oxygenated atmosphere, and the ozone layer.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bfulkerson77

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Periods are small enough time units to chronicle major changes in life forms. Eras are far too big, and epochs are too small.

Answer to Question 2

Answer: D


anshika

  • Member
  • Posts: 510
Reply 2 on: Jul 29, 2018
Gracias!

vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Unit of blood. Unit of blood.
Although average brain size increases gradually though time in H. erectus, individuals with small br Although average brain size increases gradually though time in H. erectus, individuals with small br
A Motor Unit A Motor Unit
Press into points along the neck with your thumb, one side at a time. Apply circular friction to ... Press into points along the neck with your thumb, one side at a time. Apply circular friction to ...
Jim Croce - Time in a bottle - 1973 Jim Croce - Time in a bottle - 1973
Grand Funk Railroad - Bad Time Grand Funk Railroad - Bad Time
Video: Ultrasound of a Fetus (Sonogram)

For a complete list of videos, visit our video library