Answer:
The first heart sound (S1) represents closure of the atrioventricular (mitral and tricuspid) valves as the ventricular pressures exceed atrial pressures at the beginning of systole (point a). S1 is normally a single sound because mitral and tricuspid valve closure occurs almost simultaneously.
Explanation:
Answer:
Cell division also enables sexually reproducing organisms to develop from a single cell, the fertilized egg or zygote Cell division involves in repairing of cells e.g. bone marrow makes the new blood cells. It is important because it distributes the identical genetical material to daughter cell.
Explanation:
hope it helps you
mark me as brainliest!!
Celiac disease can cause inflammation in the digestive tract, which may result in bloating as well as many other adverse digestive issues.
One study of 1,032 adults with celiac disease found that bloating was one of the most common symptoms.
The first generation of offspring in Mendel's experiment is called "F1".
Answer:
The model of water from paper clips can be made as follows:
1) As a water molecule has a single atom of hydrogen, we can place the single green paper clip in the center. This green paper clip will depict a hydrogen atom.
2) As two oxygen atoms are present in a molecule of water we can place each of the two yellow paper clips at the sides of the green paper clip. These yellow paper clips will depict the oxygen atoms.