« previous next »

Author Question: Which event is nearest in time to the end of the period known as snowball Earth? (Read 1174 times)

penguins

  • Hero Member
  • *****
  • Posts: 903
on: Jul 12, 2013
Which event is nearest in time to the end of the period known as snowball Earth?
A) oxygenation of Earth's seas and atmosphere
B) evolution of mitochondria
C) Cambrian explosion
D) evolution of true multicellularity
E) Permian extinction


Millan

  • Sr. Member
  • ****
  • Posts: 368
Reply #1 on: Jul 13, 2013
I know it's C, we did this last week ;)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

penguins

  • Hero Member
  • *****
  • Posts: 903
Reply #2 on: Jul 18, 2013
Thank you, thank you!!


Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Nov 15, 2015
Quote from: Millan on Jul 13, 2013
I know it's  , we did this last week ;)
Thank you


« previous next »
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Time-course of reprogramming mouse fibroblasts into induced pluripotent stem cells Time-course of reprogramming mouse fibroblasts into induced pluripotent stem cells
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
The Atmosphere Screens Earth from Harmful Solar Radiation The Atmosphere Screens Earth from Harmful Solar Radiation
Earth’s Revolution and Rotation Earth’s Revolution and Rotation
Embryonic Period Embryonic Period
Embryonic Period Embryonic Period
Video: Glucose anabolism reactions: Glycogenolysis and Gluconeogenesis

For a complete list of videos, visit our video library