The countercurrent heat exchanger that prevents arterial blood from overheating the testes is the pampiniform plexus of veins. The pampiniform plexus helps to regulate testicular temperature, allowing sperm maturation. It surrounds the testicular arteries and works as a countercurrent heat-exchanger system to cool the arterial blood before entering the testes. This is because the sperms can not develop if the testis is at body temperature.
Answer:
photosynthesis is a process utilized by autotrophs to produce the products required for cellular respiration. Unlike you and me, plants and certain other Autotrophs like bacteria; can’t consume other organisms. That being said, they still require nutrients to preform cellular respiration. Those nutrients are obtained through processes such as photosynthesis.
So in other words photosynthesis produces glucose and oxygen required for aerobic/anaerobic cellular respiration, and that’s how there related.
Answer:
Both are correct
Explanation:
Not all are flowers in the path of engine progress and development. There is a phenomenon that haunts technicians since the beginning of engine development and, it seems, will always be present in the lives of those who work with the engines, this phenomenon is called abnormal combustion, also known as spark knock, ping, and detonation.
During abnormal combustion the increase in temperature and pressure within the combustion chamber which can cause serious engine damage.
Only the strongest animals survive
Planet earth is the only known region of the universe to host life and so the basic criteria for life is based on observations made here. For an entity to be considered a living organism it must contain DNA or some other means of storing genetic information. The second criteria is that it must have some way of extracting nutrients from its surroundings. The organism must be able to respond to environmental stimulus and last but not least it must be able to reproduce.
