Charles is an engineer who is evaluating a prototype of an artificial heart. the prototype beats in a synchronized fashion, is hollow, and has tubes attached to it. it can be powered by electrical signals from the brain when it is interfaced with the appropriate nerves. what important feature should charles notice the prototype is missing?

Charles should note that a structure that would divide the hollow heart into chambers to separate oxygenated blood from deoxygenated blood is missing.

Explanation:

An artificial heart is a device that is implanted in patients who have some form of heart failure. This device, intended to help the natural heart to work normally, has the function of replacing one of the cameras or even the two chambers of the heart.

The artificial caration should work similar to the natural heart. At this point the artificial heart developed by Charles is inappropriate, because the artificial heart developed by Charles is hollow, while a natural heart consists of four chambers: the two atria and the two ventricles.

This division of the natural heart serves to separate oxygenated blood from oxygen-free blood. For this reason, we must conclude that Charles must realize that his artificial heart lacks a structure that would divide the hollow heart into chambers to separate oxygenated blood from deoxygenated blood.

carbohydrates are the body's preferred source of energy.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !