Marine fossils are only in places where the ocean used to be, millions of years ago. Then the marine life that died, its dead bodies remained there to later on became fossils...
Answer:
Leukocytes are a hindrance in a blood transfusion. They can be filtered out and improve a blood transfusion.
Explanation:
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I think the answer is a watershed!
Archaea I think this is the right choice
Answer:
An organ that helps with digestion but is not part of the digestive tract. The accessory digestive organs are the tongue, salivary glands, pancreas, liver, and gallbladder.