Any animal that eats other animals, living or dead, as a source of nutrients is a(n) ____.
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What is the possible cause of the end-Ordovician mass extinc…
What is the possible cause of the end-Ordovician mass extinction?
To be called “life”, what two processes must be occurring?
To be called “life”, what two processes must be occurring?
A sudden appearance of new organisms in the fossil record is…
A sudden appearance of new organisms in the fossil record is called the ______________ Explosion
No basement rock exists from the Archean or Proterozoic eons…
No basement rock exists from the Archean or Proterozoic eons.
Which of the following best describes the movement along a d…
Which of the following best describes the movement along a divergent plate boundary?
Which division of Earth exists below the crust and above the…
Which division of Earth exists below the crust and above the core?
During ___________, soft-bodied organisms making up the Edi…
During ___________, soft-bodied organisms making up the Ediacaran fauna were fossilized in Australia.
The three categories of rocks are classified by ____.
The three categories of rocks are classified by ____.
In a sequence of undisturbed sedimentary rocks, the oldest f…
In a sequence of undisturbed sedimentary rocks, the oldest fossils will be ____.