Bicarbonate buffer system. Human blood contains large amounts of carbonic acid, which is a weak acid, and bicarbonates, a strong base. If blood pH falls below 6.8 or rises above 7.8, one can become sick or die. This bicarbonate buffer system help maintain blood pH at 7.4. The bicarbonate neutralizes excess acids in the blood while the carbonic acid neutralizes excess bases.
Human somatic cells have 46 chromosomes, including 22 homologous pairs and one pair of nonhomologous sex chromosomes.
Answer:
After meiosis II each daughter cell contain 24 chromosomes.
Explanation:
Four daughter cells are produced in a single meiosis. so each cell recieve only 24 chromosomes.
<span>The geologic time scale is divided into periods, which are then divided into epochs, which are further divided into ages. For example, the time of the dinosaurs lasted 3 periods (Triassic, Jurassic, Cretaceous), each period had 3 epochs (late, early, middle), and each age fit into one of those. Many epochs have more than 1 age associated with them.
As for the basis for differentiating the eras, I'm not so sure. The only one I can say for sure is the end of the Cretaceous, which is when the dinosaurs suddenly became extinct due to a meteor impact. I think the divisions are based on significant, global-scale events that changed the world.
Sorry its so long but that the answer i think >:) ur welcome
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Short-term regulation of feeding involves signals coming from the liver and GI tract. Stretch receptors send afferent signals through the vagal nerve fibers to the chemoreceptors in the stomach and proximal small intestine,
Short-term regulation food intake is primarily regulated by food signals resulting from both their preabsorptive action in the gut and their postabsorptive metabolism, as opposed to long-term food intake, which is regulated by adiposity signals. The first process, commonly referred to as short-term regulation, tries to consume enough energy to counteract what is being used up. It is typically believed that this short-term mechanism controls both the interval between meals and the amount of the meals.
Learn more about Short-term regulation here.
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