The atria are the heart chambers which receive blood from other organs into the heart. The structure of the atria is determined by the type of function which they performed. Atria are thin walled with no inlet valve and their contraction is gentle and incomplete. Thus, the walls of the atria are thin because they are not involve in blood pumping. The ventricle on the other hand has thick, muscular wall because it has to pump blood out of the heart through strong contractions and it thus generate higher blood pressure. The left ventricle is even thicker than the right ventricle because it has to pump blood out to the greater parts of the body while the right ventricle only pump out blood to the lungs.
Choice C is most likely to be the right answer!
Ecology is largely observational, is concerned with interactions between living organisms in their natural habitats, and is carried out in the field. By contrast, biochemistry is experimental, is concerned with interactions at the molecular level, and is carried out at the laboratory bench.
and just put a person that
Explanation:
As a diagnostic radiographer you'll use x-ray and ultrasound machines, as well as other forms of imaging technology, to look inside a patient's body and find out what's causing their illness. Working in a range of hospital departments, you'll acquire images to help with the diagnosis of illnesses and injuries.
Answer:
Explanation:
P as light energy per second is more commonly called Power.
E, Irradiance, is defined as P/A where A is the illuminated area; it is also more commonly called as Intensity.
As the light angle increases, P remains constant but A, the illuminated area, increases. So E, Irradiance, will decrease.
