What is the meaning of the term diffusion? 1. Transport of materials or molecules small enough to cross through pores in a membrane
2. Transport across a membrane requiring a transport protein but not requiring energy
3. Transport of water to dilute molecules that are highly concentrated on the other side of the membrane
4. Transport or dispersing of molecules until there is a uniform concentration of molecules throughout a solution

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Why are common names a problem for scientist?