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

Author Question: Early in the twentieth century, what was the prevailing view of how land animals migrated across ... (Read 130 times)

809779

  • Hero Member
  • *****
  • Posts: 579
on: Jul 14, 2018
Early in the twentieth century, what was the prevailing view of how land animals migrated across vast expanses of open ocean?
 
  What will be an ideal response?

Question 2

Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rekilledagain

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 14, 2018
Answer to Question 1

Early views were far-fetched ideas about rafting, land bridges, and island stepping-stones to get from one continent, across an ocean, and onto another continent.

Answer to Question 2

Mesosaurus was a freshwater reptile, and migration between the continents as they are now would have been impossible; however, if they were connected (as in Pangea), then this animal could have easily moved between the two by freshwater river systems.


809779

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 14, 2018
Thank you :)


rekilledagain

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 14, 2018
Happy to help you


« previous next »
 

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor
Close-up view of Pluto's mountains, frozen plains and hazes Close-up view of Pluto's mountains, frozen plains and hazes
Predicted Temperature Trends Through the 21st Century Predicted Temperature Trends Through the 21st Century
Animals and Language (1 of 2) Animals and Language (1 of 2)
"early adulthood" VS."middle adulthood" "early adulthood" VS."middle adulthood"
Plot of Land (Modified Offset Method) - Offset lines Plot of Land (Modified Offset Method) - Offset lines
Video: Basic rhythm - control centers in medulla oblongata, spirograph and normal tidal cycle

For a complete list of videos, visit our video library