Answer:
A
Explanation:
Doppler Echocardiogram
A traditional echocardiogram uses sound waves to produce images of the heart. In this procedure, a radiologist uses a transducer to transmit and receive ultrasound waves, which are reflected when they reach the edge of two structures with different densities. The image produced by an echocardiogram shows the edges of heart structures, but it cannot measure the speed of blood flowing through the heart. Doppler techniques must be incorporated to provide this additional information. In a Doppler echocardiogram, sound waves of a certain frequency are transmitted into the heart. The sound waves bounce off blood cells moving through the heart and blood vessels. The movement of these cells, either toward or away from the transmitted waves, results in a frequency shift that can be measured. This helps cardiologists determine the speed and direction of blood flow in the heart.
I believe its molecular biology because the it is about nucleic acids, carbohydrates, lipids and protein and they are related to DNA and RNA
The acid which dissociates completely into H+ ions in water will have the lowest pH value , while the base dissociates completely into OH- ions in water will have the highest pH value. Strongest acids has pH of 1 while strongest base has ph of 14. (0 - 6.99 are acids.)
Part A done, you will find the answers below.
<u>Hope this helps!</u>