Answer:
I believe it's Mercury.
Explanation:
Hope my answer has helped you!
All known living things are made up of one or more cells<span>.
All living </span>cells come<span> from existing </span>cells<span> by division.
The </span>cell<span> is the fundamental unit of structure and function in all living organisms.</span>
Answer:
The Atmosphere.
Explanation:
The atmosphere that surrounds Earth is made up of gases like nitrogen, carbon, oxygen, and water vapors.
Khan Academy is great! Also, Alison (it's a website) has some free courses as well.
Answer:
Lung function tests (also called pulmonary function tests) include a variety of tests that check how well the lungs work. The most basic test is spirometry. This test measures the amount of air the lungs can hold. The test also measures how forcefully one can empty air from the lungs.
