10. Which describes an effect of stress on the respiratory system? It can trigger muscle tension.
O It can trigger an asthmatic attack.
.
It can stimulate the need for caffeine.
O It can increase blood pressure.

It can trigger muscle tension which may trigger an asthmatic attack as respiratory system is about breathing and asthma might make it hard to breathe unless you have an inhaler. Blood pressure have nothing to do with respiratory system as it falls under circulatory system.

2b2t

explanation:

2b2t

answer; hepatitis a& b can be passed through breast milk; (true);