Answer:
the particles of the water will slow down
C.The unique role the species plays in an ecosystem .
You didn't provide the reaction, but enzymes usually just help the reaction take place, often faster then it would in regular conditions. They are completely used up during the reaction and don't affect it in any other way, meaning they don't change the properties of the compounds.
Answer:
Either the Chloroplasts or the cell wall
Explanation:
The answer is D. That is what physics textbooks say.
