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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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jihuygu jihuygu
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6 years ago
How old are the oldest fossils of more advanced organisms, the eukaryotes?
 
  A) 3.8 billion years
  B) 3.5 billion years
  C) 2.8 billion years
  D) 2.1 billion years


Q. 2 - ________ are organisms that reproduce sexually and have cells that contain nuclei.
 
  A) Prokaryotes
  B) Eukaryotes
  C) Protologics
  D) Cenozoics


Q. 3 - The ________ Period was called the golden age of trilobites, resulting in more than 600 genera of these organisms.
 
  A) Silurian
  B) Cambrian
  C) Jurassic
  D) Mississippian


Q. 4 - During which geologic time period did Pangaea form?
 
  A) Precambrian
  B) Late Paleozoic Era
  C) Mesozoic Era
  D) Mid-Cretaceous Era
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apyattapyatt
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6 years ago
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jihuygu Author
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#2
6 years ago
I know this sounds cliche, but I was thinking the same thing for each of these. Thanks for confirming Slight Smile
wrote...
#3
6 years ago
I'm sure Wink Face Thanks for your honesty
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