PDF chapter test TRY NOW
1. When any dry plant material is kept in water, they swell up. Name and define the phenomenon involved in this change.
a. The swelling up is due to
b. It is a sort of in which a solid absorbs and swells up as a result of absorption.
2. Why are the walls of the left ventricle thicker than the other chambers of the heart?
a. The left ventricle is longer and narrower than the right ventricle.
b. The left ventricle walls are nearly \(six\) times thicker than the right ventricle.
c. The left ventricles have thick walls because the ventricles have to pump the blood with force away from the heart.
3. Doctors use stethoscope to hear the sound of the heart. Why?
a. A stethoscope is used to detect the sound produced by the internal organs of the human body.
b. The heart sound is heard by placing the stethoscope on the chest.
c. Stethoscope is a helpful diagnostic tool for diagnosing and locating health problems and diseases.
Register for free to see more content