Answer:
126 mm Hg
Explanation:
the percentage by volume of oxygen in the air is 21%. Therefore it also contributes to the 21% of the total barometric pressure of the air.
Now, 21% of 600 mm Hg
=21/100*600= 126mm Hg
therefore The partial pressure of O2in Antonito’s air is approximately is 126 mm of Hg.
Answer:
Cancer and Arthritis
Explanation:
Some causes of cancer include smoking, obesity, and lack of nutrition. Cancer is diagnosed using a biopsy. A biopsy is a procedure in which the doctor removes a sample of tissue. A pathologist looks at the tissue under a microscope and runs other tests to see if the tissue is cancer. Some treatments for cancer include Chemotherapy, surgery, Radiation therapy, and bone marrow transplant.
The most common cause of arthritis is usually if your family has a history of arhritis. It is usually diagnosed with an x-ray or a blood test. Treatment includes Painkillers, physical therapy, and exercise.
Answer:
A
Explanation:
Correct answer is
A.) No. Theories can be refined and improved over time, but cannot become scientific laws.
The food chains make up the food webs
Plants<span> respire all the time </span>because<span> their cells need the energy to stay alive, </span>but plants can<span> </span>only<span> photosynthesize when they are in the light</span>
