The best way to do a observation can be a microscope or by taking notes ,and by , taking pictures or, asking questions about the subject that you and the teacher or you, your teacher and the class is talking about .! Hope this helps ..
1. Lung capacity is basically how much air (in volumes) your lungs can hold.
2. I think that a swimmer would be able to have the biggest lung capacity because when swimming, you are mostly underwater with no air, so being able to hold as much air in as you can when you come up to take a breathe will help improve how well you do.
saliva in mouth
pepsin,hcl,and mucus are responsible for digestion of food
What is the answer to find 3 or to go and get it or to help I think the answer is c
