Tubes that carry air inside the lungs plz answer

Why is it that people at first would be nice then they shut you down? (school matter)

What would happen if you ate the number of calories of someone who is much taller and more active than you are?

What are the components of an effective weight-training program? a. conditioning, progression, generalization, overwork, balance, and recovery b. overload, progression, specificity, regularity, recovery, balance, and variety c. overwork, coordination, motivation, conditioning, regularity, and variety d. consistency, progression, rest, regression, balance, and specificity