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Explain Peppered moths and its classification and one study done on it....

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Explain Peppered moths and its classification and one study done on it.

Explain Peppered moths and its classification and one study done on it.



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A male moth uses his antennae to detect the concentration of a pheromone on each side of his body, allowing him to fly toward the female that is producing the pheromone. Explain how sensory receptors, peripheral nerves, and the central nervous system interact to allow moths to compare pheromone concentrations in the air surrounding each antenna.

Okay, So for this question, we are asked, How can looking at larvae of organisms potentially help scientists understand? On further classifying? Determine, um, file a genie off different animals. So before we jump in, we need to understand a few basic terms that are outlined in the question. So one file a genie. This is referring thio, the evolutionary past and the similarities that we can ascertain of different organisms based on evolution. So that's one. And we also need to understand what larvae means. It's simply puts, Ah, working definition for this problem would be that larvae are the developmental stage. So one of the earliest stages on a given life form. So how can we look at the early stages of an organism to understand that evolutionary similarities and development of these organisms? So I have a little example written out here, where we're looking at a group of organisms under the name Roosa form a common example. Often, use form would be a caterpillar, and they're classified by having a variety of different traits, notably, uh, antenna. They have to attend. They have truth, Jurassic legs as well. So these are just two traits which you could use to identify an organism as being in a Russo form. So that would be a good example of looking at the larvae stage of these organisms, looking at the traits they have and understanding what group they belong in. Now how does this relate to file a genie? Well, obviously, if the animals are under the same group, we can understand that they have, ah, common ancestor because they have so many traits in common. These genes were passed along toe, give thes traits and characteristics. Additionally, we can look at other groups. Here we have E for Arusha form. It's an abbreviation here, just a miscellaneous group F off organisms. Let's say they share one common trait one here, one here. So even if they aren't the same group, but they share one common trait, we could look at an evolutionary tree and make some assumptions and further investigates if they might share one common ancestor that also has this trait. So because they both have a trait from this common ancestor potential common ancestor, we can look at the file a genie and get understanding. So by looking at the larvae, we are able thio easily see some similarities and differences and then, um, extrapolate upon that to look at common ancestry or evolutionary development

Mhm. In this question, we are going to discuss about two areas the classification system and the study of evolution and how they are interlinked. First, let's talk about the classification. So this is influenced by the evolution. The modern classification system or the follow genetic classification was based on the organism evolution and this classification is based on the difference and similarities between different species of organisms. And they are classified. Talking about classification of humans. Let's take an example of humans. The similarity is that they are evolved from common ancestor and the difference is due to adaptation to different climatic conditions. So they are classified under different branch. So this is a body classification. Let's talk about the study of evolution in evolution. The species are graded to increase complex city. So evolution is based on the developing complexity in the theory of evolution, which is proposed by Darwin stated that the organism that are extinct now that lived years ago had undergone changes for better survival capacity and developed into new life forms. So these from these explanations of classification and revolution, we know that they are both intelligent. So based on the evolution, classification is done. So this is about classification, and the study of evolution intervene.

Okay, so this question is looking at what we defined here as macro evolution. So we have two different scales. Micro evolution, macro evolution, um, that are used in macro evolution generally refers to evolution above the species level. So we're really talking about, um, whole group of organisms that then would have something, maybe like a speciation event that occurs that split them into two, two different species. Um, so we have a couple different ways that can affect this and influence it. Our first, obviously, is natural selection. And this natural selection is basically where we see the origin of new species occurred and its operation operating in a population that then can diversify so we can have diversification as a result of natural selection where certain individuals with certain traits are selected for over time. Eso we have a body form, we have our time, and maybe something causes. Although isolation between the two populations and so what happens is maybe bigger beaks here are selected where smaller beaks are selected in our other population and re results. So we had an individual group here, state of our finches. I'm like with Darwin, and they colonized a new island. They then had certain traits that were selected for in those different populations because of different environments, and it caused them to diverge into the two species, A and B. We can also have genetic drift that can occur. So we have say we have a small population. Say, um, it's called a group of organisms from population A. Yes, we had population a went over in colonized a new area. And with that, it can change the ah Leo frequency because you have only a set of Gina types that may have moved over so they can come isolated. And so this population now had certain Leo's that were selected for that changed, and that population then evolved into a species. Be so anything that a small population. You have changes in a Leo frequency, which is our overall definition of evolution. This causes a little frequencies, changes in a little frequencies no, and the populations diverged from one another. We can also have our last factor here, which is gene flow, which introduces Newell Eels into a population, and by introducing new Leal's. Those could bring on Advent a cious, um, adaptations that then could result in a change in that population. But it is also something that can keep populations of species more similar, and thus then influencing macro evolution, where we don't see a change between populations A and be where they don't diversify into different species because they are sharing genetic information between them.

So for this question, we were asked to imagine a male moth. And this is a male moth that has something wrong. There's a mutation and into unable to detect pheromones from female lawns so fair moaned nots detected. So let's start with what a pheromone is. A pheromone is a chemical that is released by an animal for the purposes of communication. All right, so pheromones are used in communication, and in many moths, the females release these chemicals into the air in order to signal to male moss of the same species where they are, so the mail must confined them and come and meet with some rate. So the mammoth right will follow a kind of stream of fair mum's heels fly upstream, this of the stream of pheromones, and there are to find a female and to meet with her so they're critical for mating. You're critical to meeting. If the males can't detect the females, then they won't find her. And the issue These were the roommates when they won't have any offspring. And so that's the situation here, right? This male moth, in our question, has some kind of defect in its ability. Uh, to detect fair ones from the females. And the question asked this about what will happen to this month in terms of natural selection. Well, the mail has this defect. It can detect Fireman's, he's not gonna find females. And if the male mouth cannot find females, he cannot successfully meet, and he will not pass on this trade. No pass on the trade. So his defect, the inability to sex pheromones, will not be passed on, so natural selection and other cities will sort of act against him on. And so we do not expect this trait. That's inability tech pheromones on to be passed on because the male moth won't be able to find any females to have offering less to pass the trade on to. So this is the end of road for that particular trade.


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