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:
i think it is D, she has already constructed the hypothesis and needs is performing the experiment. there is not much of an observation stage because she is looking at a distant end result in a set time frame.
Answer:
i think is a but im not sure but i hope it helps.
Explanation:
During a baseball game, a player’s ball hit into the outfield is modeled by the equation h = –16t2 + 65t. A bird flying across the field follows the path modeled by the equation h = 8t + 20. Let t be the time since the ball is hit and h be the height.
Larches trees are usually grown as an ornamental plants, that is, they are grown for their beauty. They are deciduous conifers and evergreen plants. Larches typically need cold climate and plenty of water to grow and they are found in large quantity in Northern Europe, Asia and America.
Larches trees in Siberia are not harvested much because they are majorly planted as ornamental plants.
