The link between all body systems is the brain. The brain regulates all of the body systems using a variety of hormones and signals.
endrocrine system
The difference between cells, tissues, organs, and body systems are that many cells make tissues, many tissues make organs, and many organs make body systems.
no
Hypothalamus
The Nervous System
Sharks dont have internal systems, they just have air between thier body.
The arterial and venous systems are connected in the body tissues by capillaries, and also in the heart.
The arterial and venous systems are connected in the body tissues by capillaries, and also in the heart.
nerves detect changes to salt levels in the blood
No everybody has piercings today.
The reproductive and endocrine systems both regulate the functions of the body. They rely on communication between cells to send and receive messages.
discuss the relationship between body systems required to support healthy functioning