Answer:
Endocardium
Explanation:
The endocardium makes the innermost lining of the wall of the heart. It is present over the thin layer of connective tissue. The function of the endocardium is to provide a smooth lining for the chambers of the heart. The valves present in the heart also have endocardium. The dense connective tissue of the heart valves is covered by endocardium.
The presence of the smooth endocardium made up of endothelium reduces the surface friction as blood passes through the heart. The endocardium of heart chambers is continuous with the endothelial lining of the large blood vessels that are attached to the heart.
Answer:
An iron rod used for beating down the earthy substance in tamping for blasting.
From te options above, the only true statement is :
Today, most scientists believe that both nature and nurture are important in animal behavior
For example : Imprinting ducks
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Fat, more specifically, triglyceride which are the main constituents of natural fats and oils in humans and other animals
