What is the role of antibodies?
to identify antigens and then tag dangerous antigens for removal
Why are capillaries so thin?
to allow diffusion of gasses and exchange of nutrients and wastes
what is the function of the digestive system?
break down molecules into smaller molecules to be diffused into the blood
During exercise, humans need to remove more of what molecule?
CO2
What is the primary function of the heart?
PUMP BLOOD
What is one way in which your body regulates temperature?
sweating, shivering, blood to surface of skin
What gas does blood deliver to the cells, and what does blood remove from the cells?
O2 and CO2, respectively
Where does chemical digesting in humans begin?
Mouth via saliva
What molecule is brought into the lungs and diffuses into the blood stream?
O2
The virus HIV causes this disease if white blood cells drop too low in the body
AIDS
What happens when a person with A- blood is given B+ in terms of antibodies and antigens?
A- persons blood attacks the B+ blood by identifying the antigens and attacking with the antibodies.
All blood cells are originally made where?
your BONES
Which organ secretes hormones to tell our liver to release or store blood glucose?
Pancreas
The main muscle that allows you to inhale and exhale is the?
Diaphragm
An inability to balance blood glucose levels causes what disease?
Diabetes
Constantly monitoring and adjusting the body temperature automatically by your nervous system is a type of what mechanism?
Feedback mechanism keeping a stable internal dynamic equilibrium
What are the four components of blood?
Plasma, red blood cells, white blood cells, and platelets

This graph could be describe as maintaining homeostasis, or also know as a dynamic what?
Dynamic equilibrium

What process is naturally occuring in structure B?
gas exchange!
What is the major difference between red blood cells and white blood cells?
Red - deliver gas exchange. White - fight off invaders
Describe how a vaccine works
you introduce a harmful or weakened version of a virus to the body so it can identify the antigens and then create antibodies as a defense.

Which structure represents the chamber of the heart that sends deoxygenated blood to the lungs?
5
Describe the major difference between arteries and veins completely
arteries - thick and sturdy to withstand high pressures and carry blood away from heart
Veins - thinner and has one way valves, carries blood back towards the heart