This question appears to be incomplete. During blood doping, the athlete will have blood drawn and stored. The athlete will then allow sufficient time for the body to replenish the removed blood. Immediately prior to the event, the athlete will inject the stored blood back into his/her system. Blood doping<span> effectively increases the number of </span>red blood cells<span> in the bloodstream to above normal. This enhances performance because blood cells carry </span>oxygen<span> from the </span>lungs<span> to the </span>muscles<span>, and a higher concentration of oxygen in the blood can improve an athlete’s </span>aerobic capacity<span> a</span><span>nd </span>endurance.
C. a rise in blood carbon dioxide concentration
Explanation:
Negative feed back mechanism refers to the control mechanism in which a product of a particular pathway controls the switch on and switch off of that particular pathway.
Since breathing increases the blood oxygen concentration and lowers carbon dioxide concentration and pH. The sensors that regulate the breathing should respond to oxygen concentration as the carbon dioxide is the by-product of respiration and is responsible for increasing blood pH. Thus increased Carbon dioxide levels in blood is the only factor which will trigger breathing.
The rigid layers of fungal cell walls contain polysaccharides called chitin and glucans. The wall protects the fungus from desiccation and predators. Most fungal hyphae are divided into separate cells by endwalls called septa(e). These tiny holes in the septa allow the rapid flow of nutrients and small molecules from cell to cell along the hypha.
<span>An oceanographer would be most likely to study how whales are affected by pollution. An Oceanographer is a scientist that studies all aspects,physical and biological that pertain to the ocean. The topic of whales and pollution can fit under the study of ocean ecosystem dynamics which falls under the large umbrella of oceanography.</span>
Answer: E.
Explanation: Decreasing greenhouse gasses is good. You could always use the process of elimination for this! All of these are harmful to the environment except the decreasing of greenhouse gasses!
