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Author Question: Mammals that lay eggs are called ____________________ mammals. Fill in the blank(s) with the ... (Read 75 times)

KimWrice

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on: Jul 15, 2018
Mammals that lay eggs are called ___________________ _ mammals. Fill in the blank(s) with the appropriate word(s).

Question 2

Scientists know that birds began to evolve prior to the Cretaceous, due to the fossil known as
  ___________________ _. Fill in the blank(s) with the appropriate word(s).



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sylvia

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Reply #1 on: Jul 15, 2018
Answer to Question 1

monotreme

Answer to Question 2

Archaeopteryx


KimWrice

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Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

dreamfighter72

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Reply 3 on: Yesterday
Gracias!

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