The right atrium receives what type of blood and from what location(s) in the body?

Which person would you expect to have the lowest vital capacity and why? Jason Momoa, Image Source: Link   Homer Simpson, Image Source: Link   Simone Biles, Image Source: Link

The muscles of inspiration will increase the volume of the thoracic cavity. 

Select the correct order of heart conduction.

The atria are the chambers of the heart that receive blood into the heart. 

Cardiac muscle cells are rich in mitochondria.

The right atrioventricular valve opens for blood to flow from the right atrium to the left ventricle. 

Choose the correct option to correctly complete the sentence:  An adverb clause should always start with a word such as ‘if’ , ‘because’ , ‘before’…etc. This word is called : 

Choose the correct option to correctly complete the sentence:  The following is NOT a subordinating conjunction:

Identify and choose the complete adverb clause: We had to wait in the lobby until a room was available.