Biology

The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system's means of getting oxygen to the blood. The respiratory system also helps to regulate the acid-base level in the blood. lastly, the respiratory system allows us to vocalize by the movement of exhaled air through the larynx.

brings oxygen into the body

The endocrine system affects cells with certain receptors .

The nervous system can affect only nearby cells

It sends messages that control all the systems in the body.

The nervous system controls almost every action in the human body. It controls the heart beat, your adrenaline levels, and many other things which can effect an organism.

The thyroid gland releases hormones that affect the metabolism of the body and calcium deposition in bones.
Controls the bodys metabolism
Your thyroid is a butterfly-shaped gland in the lower, front part of your neck. It controls your metabolism and keeps your whole body functioning properly.

Academic preparation is an AP course. AP stands for Advanced Placement.

I can give an example if that would help.

There are many AP courses including AP Calculus and AP Chemistry.

Usually these courses are offered by High schools to gives the students college credit.

A student who successfully completed AP calculus at high school does not have to take all calculus courses at a college.

By Edward

Nutrients are absorbed into the bloodstream. Starch is broken down by enzymes.

Macromolecules are broken down.

The circulatory system is its own system. There are not systems in the circulatory system.

HIV attacks helper T cells that are trying to fight infection, rather than attacking healthy body cells like a cold virus does.

HIV attacks lymphocytes directly.

The endocrine system sends messages using hormones. It delivers messages from the nervous system to the excretory system. It tells the excretory system when the blood is out of balance.

The patient's urine

Urethra APEX_

eyes develop

lips start to form

Vocal cords develop.

A few bucks.

They are as similar as any other two siblings.

The woman will most likely not be able to conceive until the thyroid problem is treated appropriately. Additionally, pregnancy with a thyroid disorder that is not under control is dangerous for the fetus.

interneurons

the lips begin to develop is one of them, hopefully its yours.

5 cars per hour