Biology

The endocrine system affects cells with certain receptors .

The nervous system can affect only nearby cells

Red blood cells coagulate wounds; white blood cells defend against bacteria.

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.

Platelets

Small intestine

Esophagus - APEX

The parts of the alimentary canal are:

The Mouth

The Pharynx

The Stomach

The small intestine

The large intestine

The distribution of alleles changes due to random chance.

or

The allele frequency of a population changes due to a bottleneck effect. <apex>

The polysaccharides have been broken down.

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.

Adrenalin.

One gland causes calcium ions to be released; another gland causes them to be absorbed

Depends on when you consider it a child. First it's a Zygote, a fertilized egg, and then a blastocyst. Medically it's not a child until it's born. But if we start with embryo you can read all about it in the link below. Someone wrote blood starts pumping and arms starts to develop but that is weeks later.

Blood pumps through the body.

or

Rhythmic breathing movements

eyes develop

lips start to form

Vocal cords develop.

There is very little cannibalism in clinical trials

If it is the fatter bone in the leg, then it is the tibia

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

If your options are

Latissimus doris

Rectus abdominus

Biceps brachii

Obliques

Then the correct answer is Rectus abdominus