Answer:
Hi! your answer should be (A.) Enzymes
Explanation:
The enzyme is the biological catalyst that participates in the chemical reaction occuring.
Answer:
"Valley High School is a community that promotes a
safe and healthy tobacco-free lifestyle."
Explanation:
This is becasue this statement explicity states how the school feels about tobacco and drugs, which is that they "promote a safe and helathly TOBACCO-FREE lifestyle."
Blocked coronary vessels restrict blood flow to the heart, therefore causing the heart to not receive enough oxygenated blood.
