Most of the stars on the HR Diagram are classified as which type of star?

Which best describes what you will do in the reaching your academic potential course?

There are only about 250,000 known fossil species. true or false

4emphysema is a health condition in which the lungs can no longer expel carbon dioxide normally. as a result, a person who has emphysema may have high blood acidity levels. the body process that would attempt to return the blood ph to normal so that cells could function properly is called a. active transport b. acidosis c. homeostasis d. adaptation