Any sound above what db can cause hearing loss in human beings

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

In which part of the body is a ball-and-socket joint found?

What is used as a template during replication? a- mrna b- trna c- rrna d- dna