1) respiratory system is made of the windpipe lungs diaphragm alveoli takes in oxygen and waste
2) breathing allows you to take in the oxygen your cells need and expel carbon but when you breathe you loose water.
3) the lungs are the only organs that can float on water bc it is holding 300 million ballon like structure called the alveoli
Answer:
People are afraid of catching and spreading the corona virus.
When I go to Walmart (don't have Costco where I live) there are some people who have masks and gloves on, so do the workers!
Since the virus is spread through hand to mouth contact, most people wear the masks to keep their hands from touching their face, and gloves to help keep the spread of the virus low. A lot of people also wear the mask so that they don't cough on others and get them sick!
Hope this helps.
Explanation:
Whats the question exactly i dont get it
your answer is B. it is difficult to see physical and cognitive defects.
Changes in color and smell.
