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Author Question: _____ are layered formations caused by mats of algae or bacteria combined with sediments. A) ... (Read 23 times)

rmenurse

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on: Jul 27, 2018
_____ are layered formations caused by mats of algae or bacteria combined with sediments.
 
  A) Metabolites
  B) Stromatolites
  C) Cellulites
  D) Rhyolites

Question 2

Deoxyribonucleic acid (DNA) automatically combines raw materials to form important chemical compounds. The building blocks of these molecules are _____.
 
  A) sugars
  B) amino acids
  C) lipids
  D) vitamins


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covalentbond

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


rmenurse

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Reply 2 on: Jul 27, 2018
Gracias!

xthemafja

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Reply 3 on: Yesterday
Wow, this really help

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