Which of the following is not an example of homeostasis :a. a rise on the blood pressure in the aorta triggers mechanisms to lower the aretrial pressure. b. a rise...

Which of the following best illustrates homeostasis? (Explain your answer.) a. Most adult humans are between 5 and 6 feet tall. b. All the cells of the body are about the same size. c. When the salt concentration of the blood goes up, the kidneys expel more salt. d. When oxygen in the blood decreases, you feel dizzy.

When you think about home eo Stasis, you're talking about principles that are trying to create a steady state within the internal environment of an animal. So that's kind of the interplay between the external environment, which is causing changes. An internal environment designed to regulate those changes. So, of each of these potential answers, expelling salt is something that's getting rid of Excel salt with excess. Um, through you're in going through the kidneys to excel more salt that is trying to create a more steady state when there's too much salt in the system, so maintains a more constant internal environment.

So what is this word that's really important? Thio Organisms and their survival home? Yo, Staci, So home. Your stasis is basically a certain type of process, and this process is one where we're making constant adjustments. So process of constant adjustments and the reason we're making those constant adjustment in the in the organism is so that we have something and can maintain the body fluctuations within a certain range. And what this basically means is that, for example, if I get too hot, my body temperature fluctuates. Um, if it gets too hot, I could die. But to make sure that I don't dye my body makes constant adjustments, which is what home your stasis is. It goes through a process of home. Eustace is allowing, um, my body to sort of cool off, either by panting or sweating or something of the sort to make sure that my body fluctuations it. Even though they fluctuate, they stay within a certain range. This is really important. However, we can narrow out some of the answer choices because one of the answer choices says that it's by behavioral change and behavioral change. Behavioral changes are not always the case not always So. For example, sweating is something that's not necessarily a behavior is just something that your body naturally does. Um, and then another way we can out some of the answer choices is it says that. Is that there? One where it says that there are no fluctuations. That's not the case. Fluctuations are allowed. Fluctuations. Are you okay? Because if that was true, then our temperatures would never change. We wouldn't ever feel pain. Nothing would ever be the same. But this equilibrium that we're at is a dynamic equilibrium, meaning that it's all right. It's all ready for a body to fluctuate. All right, thank you.

Think about what home eo Stasis means. So what is home use stays is well, that's a tendency towards a relatively stable equilibrium between independent elements, and that's he maintained by physiological processes. So in biology home Eos days this is the state of steady internal, physical and chemical conditions that are maintained by systems. So when we look at these possible answers, when there's too much water in the blood than the expulsion of the water helps to have a stable equilibrium or a steady condition of the amount of water in the blood.

So today. Other question that we're asking is if which of these falling choices are an example of what we like to call negative feedback, Um, and that is carried out by the endocrine system. So before we get into the answer choices, let's get with these words mean so negative Feedback is a type of loop in which the animal is trying to maintain a certain level or within certain parameters, so to make sure things are not to hire not too low but stay at the same point. So if it gets too, for example, of a temperature, vampirism gets too hot, then the loop makes it cool down. Um, if it gets too cold and it makes it heat up so it stays within certain parameters. So this is a negative feedback loop. Um, if we look at an endocrine system, this is where hormones and chemicals are released by the body to regulate internal processes, and so that's typically with endocrine system is in charge of. So we look at the answer choices on Lee. The 1st 3 are types of Lucques, so only a, B and C are types of loops. The 1st 1 is a positive feedback loop and that it keep the loop keeps going instead of reverting back to what it used to be. So that is wrong so we can cross out, eh? If we take a look at BNC these air both, Um, if we look at BNC, these are both negative feedback loop. So we have to see which one is an endocrine system. So the 1st 1 is about how glucose levels, um, are modified after meals by insulin. And the second on DSI is about when there is a behavior change because of the, uh, air the atmosphere around when someone is in high altitudes. So this is a behavioral change. So this is behavioral, but B is glucose, which means its internal, so we can see that beat is the right answer because of the fact that that's the one done by the endocrine system. Thank you.