<span>Leather shoes are made from natural polymers; raincoats are made from synthetic polymers. </span>
Photosynthesis is The prosses of turning light energy into Chemical energy
accrues in plants and some algae
I think it is 10% ......................
Answer:
B) increased exchange surface provided by their membranes
Explanation:
Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.
The answer is hydrogen and oxygen
