The most common tree in that continent is one that's named "floss silk". It's classified as a tropical tree so we could say that most of South America is covered in tropical trees.
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C. How long does it take a paper bag to break down?
Why did early scientists believe that plants were fundamentally different than animals?
<span>Scientists did not know animals had cells too.</span>
The correct answer is A. Apoptosis is regulated cell death/suicide, not accidental.
Answer:
Cnidarians represent a more complex level of organization than Porifera. They possess outer and inner tissue layers that sandwich a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion.
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