Answer:
There are 2 Valve Systems
Explanation:
The mitral valve and tricuspid valve are located between the atria (upper heart chambers) and the ventricles (lower heart chambers).
True because it can ensure safety in their restaurant
Answer:
Double blind study
Explanation:
A double-blind investigation is one in which neither the members nor the one performing the experiments realize who is getting a specific treatment.
This method is used to counteract inclination in research results.
Double blind examinations are especially helpful for anticipating predisposition because of interest qualities or the placebo impact.
If he sprained his ankle and you know he's n pain, then you should see the doctor or make an appointment. If the injury is severe then take him or her to the emergency room.
