Compare and contrast the types of nitrogenous wastes excreted by animals. Identify which type can be excreted with the least water, which is most toxic, and which waste is excreted by bony fishes, by mammals, and by insects. Which type would you expect to be produced by embryos inside eggs laid on land?

Video transcript

Hey everyone. Let's take a look at this question together nitrogenous waste that requires maximum water for its excretion. It's blank. Whereas nitrogenous waste that requires minimum water for its excretion is what? So let's look at the first half of the question and focus on what we mean. When we say that it requires maximum water. So when we need to release something from our body and it takes maximum water, we're usually referring to something that is toxic and something that we have to have a low concentration of within the body because it's not something that we want to readily keep within ourselves. So when we're talking about something toxic and something that has to be removed, something that comes to mind that we've learned about before is ammonia. So ammonia requires maximum water for excretion. So answer choices be and D are incorrect because we need ammonia in the first choice. So looking at answer choice is A. N. C. We're talking about syria versus uric acid. So when we're talking about minimum water we need something that uses the least amount of water. For example, something that might use one mil liter of water to expel one g. And that solution is uric acid or answer choice C. Because ammonia which is very toxic and needs to be in low concentration requires maximum water. While something that requires minimum water and uses the least amount of water to expel is uric acid. So answer choice C. Is the correct answer. I hope you found this video to be helpful. Thank you and goodbye