If you cannot talk while exercising, your exercise level is too intense.
Cigarettes are items that you use for inhaling smoke produced by them. Smokeless tobacco serves other purposes than inhaling smoke, including chewing it, or sniffing it.
After you take a breath the air travels through your windpipe and into the lungs
Answer:
False it was Karl Landsteiner
Explanation:
In 1901 Landsteiner found that there are substances in the blood, antigens and antibodies, that induce clumping of red cells when red cells of one type are added to those of a second type.
Answer:
Sue may be dreaming
Explanation:
How fast your heart beats is all based on what your doing
