Valves are like flaps or lids that are used to transport blood from the atria to the ventricles. They act as inlets and outlets of blood.
Explanation:
The atrioventricular valves are located Left and right that are in the middle of atria and ventricle on both sides of the heart while two semilunar valves separate the right and left ventricles from the pulmonary valve and aortic valve.
The Atrioventricular valves are the mitral valve and the tricuspid valve. Mitral valve is in the left side and tricuspid valve is in the right. they both are separated by the atrium and ventricle
The two semilunar valves are the pulmonary valve and aortic valve. the pulmonary valve is on the right side separated by the right ventricle and pulmonary artery. The aortic valve is on the left and is separated by the left ventricle and aorta.
Answer:
please where are the materials so that I can answer your question. No materials have been listed. please Re-write the question
Answer:C. Silver Halide Crystals
Explanation:
Silver Halide is light sensitive, therefore exposing it to light will cause a chemical reaction that darkens a film to produce an image.
Answer:
b. has likely been extracted chemically rather than mechanically.
Explanation:
When the oil extraction is mechanical, olives are squeezed with a machine till the oil comes out, the olive oil is of higher quality because there were no chemicals that interfered in the process. On the other hand, chemical extraction of oil from olives uses different substances to obtain the final product making the oil to be of low quality because some components were affected during the process
