Answer:Acidity or alkalinity of a solution is measured by concentration of hydrogen ions (H+) versus hydroxyl ions (OH-) and is expressed as pH level, an exponential scale that ranges from 0 (very acidic) to 14 (very basic).
Explanation:
The answer is C the snail looking thing is the cochlea
Enzymes.
because enzymes are a substance produced by a living organism that acts as a catalyst to bring about specific biochemical reaction.
Answer:
E. phytoplankton
Explanation:
Phytoplankton, tiny organisms that live in the ocean, are autotrophs.
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