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Author Question: What types of changes occurred in land-dwelling animals during the Mesozoic? What will be an ... (Read 38 times)

Caiter2013

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on: Jul 29, 2018
What types of changes occurred in land-dwelling animals during the Mesozoic?
 
  What will be an ideal response?

Question 2

What is the evidence that a meteorite impact caused the great extinction at the end of the Mesozoic?
 
  What will be an ideal response?


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akemokai

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Great help.

Answer to Question 2

Answer: The concentration of iridium at the Cretaceous/Tertiary boundary. Most of Earth's iridium is deep within its interior. The concentration of iridium in a meteorite is higher than the iridium concentration in Earth's crust.


Caiter2013

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

matt95

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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