Answer:
PH is a scale used to specify the acidity or basicity of an aqueous solution.
Acid soils have a pH below 7
6.5 to 7.5 for basic soils
Answer:
Hormones are chemical messengers that are secreted directly into the blood, which carries them to organs and tissues of the body to exert their functions. There are many types of hormones that act on different aspects of bodily functions and processes.
I believe it's A!!! ( Hoped I helped️)
Answer:
C
Explanation:
surface tension occurs when there is attraction between water molecules
Answer:
The right ventricle pumps the blood with less oxygen to the lungs through the pulmonary valve. The left atrium gets the blood with the most oxygen from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body, and that is how you are alive today.