An adult human being carries a supply of oxygen in the blood,lungs,and tissues adequate to sustain life for about __ minute(s) .

A) 1
B) 2
C) 4
D) 8

Oxygen

A chemical element vital for respiration in living organisms and necessary for combustion, represented by the symbol O.

Tissues

Collections of similar cells that perform specific functions within an organism, such as muscle tissue or nervous tissue.

Blood

A vital liquid in humans and animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away.