Answer:
Gas exchange during respiration occurs primarily through diffusion. Gas molecules move from a region of high concentration to a region of low concentration. Blood that is low in oxygen concentration and high in carbon dioxide concentration undergoes gas exchange with air in the lungs.
Explanation:
Answer:
6 and 6
Explanation:
All elements have an equal number of protons and neutrons
It would be C.
because it would destroy an environment very very rapidly for anything in its path
The products of photosynthesis has reactants and products
In photosynthesis for products there are rubp which is technically glucose and oxygen. So your answer would be number 4
The other ones listed are classified as reactants
The physical processes on Earth create constant change. These processes—including movement in the tectonic plates in the crust, wind and water erosion, and deposition—shape features on Earth's surface.
