Which of the following BEST explains why multiple exercises are needed to improve muscular strength and endurance throughout the body?
A. Push-ups don't exercise leg muscle groups.
B. Different exercises are needed to improve different muscle groups.
C. Weight lifting is more important for muscle strength than endurance.
D. Not all muscle groups can be exercised simultaneously.

Why is important to keep your health triangle balanced?

Explain why methicillin resistant staphlococcus aureus (mrsa) is more prevalent now than it was only 30 years ago. a. antibiotics cause mutations in staphlococcus aureus that lead to an increase in the number of methicillin-resistant strains. b. methicillin resistance causes an infection to spread more rapidly.c. frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of staphlococcus aureus.d. diseases like aids have made people more vulnerable to infections from staphlococcus aureus.

The only infectious disease that was a top-ten killer of americans in 1900 that is still a top-ten killer in 1990 is hiv/aids select one: true false