I can't find 50 sorry for that.
Hope it helps..
Answer:
Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections.
Explanation:
I googled it my guy
Answer:
90 - 100 I believe
Explanation:
An anaerobic exercise is when your heart rate reaches 80 to 90 percent of your maximum. Subtract your current age from 220 to calculate your maximum heart rate.