People with emphysema often have a difficult time with air trapping, which is air left in the lungs following expiration, often due to the destruction of the alveoli. pulmonary rehabilitation educates people who suffer from this disease to use which muscles to air leave the lungs more effectively?

Diaphragm

Explanation:

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.