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Transcript: Heredity's whole job is to ensure that offspring look like their parents. If that's the case, then how can natural selection even have any traits (beak size, fur color, ear shape, flower color, etc.) to pass onto other generations? The warrior ants have a clever little trick to defend themselves from each other. You see, every colony has a specific chemical smell that essentially says "I'm family, don't kill me" (kinda like a secret password is a way to get into a clubhouse). However, when other colonies attack a colony, the colony under attack can actually create the same chemical "safe word" the raiding colony uses, and are spared, without the other colony even realizing what happened. Without genetic variation, there would be no natural selection Warrior Ant Examples of Natural Selection That being said, heredity also helps natural selection. If it weren't for heredity, the trait would never be able to spread through generations, which would make evolution never happen. Why is it so important? Genetic variation is important because it provides the genetic material for natural selection. Variation refers to the fact that some combinations of traits will produce some slight advantage over others in this competition for survival and reproduction.This makes them produce more offspring, and so those traits are the ones that spread into a higher percentage of the population. If there is no variation ... nothing that gives any one individual an advantage over any other in this competition for survival and reproduction ... then it is pure randomness which ones get to reproduce more. So the next generation will be exactly the same as this one ... and so on. So there is no evolution. Peppered Moth How does Genetic variation occur in Natural selection That's where Genetic variation comes in.. Before the Industrial Revolution in London, Peppered moths held true to their namesake; white with black specks along their wings, which was the perfect camouflage for the birch trees in the area. However, the Industrial Revolution poured so much soot into the air that the trees became stained with black. This meant the birds could easily find the white moths for lunch. However, the darker colored moths weren't eaten, so natural selection made future generations black in color. However, when the soot cleared up after the boom, the whole thing had to happen again. Genetic Variation and Natural Selection by Denali Gwen and Hope Neer Genetic variation occurs mainly through DNA mutation , gene flow (movement of genes from one population to another) and sexual reproduction. Due to the fact that environments are unstable, populations that are genetically variable will be able to adapt to changing situations better than those that do not contain genetic variation. Surprise or not, humans are actually still evolving. Experts say that about 9% of modern humankind's genes are still rapidly changing as we speak. These namely involve things such as the immune system (which makes sense, considering all the medicines and shots we are making), sexual reproduction, and sensory perception (again, makes sense, due to all the bright screens in your pockets and the loud music we blast directly into our eardrums). Who knows, we might look very different genetically in even as few as 5 generations from now! How does it relate to us?

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Transcript: Presentation Maybe ;) Yes No She was a man few days ago but this is in the past for her. Mary's mother has 4 daughters Did you know ? Now you know ! This was unconfirmed information from internet! In 1647 the English Parliament forbids Christmas Upon the departure of the Titanic on board there were 36,000 apples 38,500 kg. Meat 40,000 eggs and 1,000 bread. This is food for crew and passengers for 7 day trip Now after this presentation you must be able to tell what is the luminosity of the sun. So? Before placing man in her bed, the Russian Empress Catherine II the Great he is subjected to a sex test in "committee" of six ladies.That's how she checked does he have a syphilis. Did you like our presentation ? This is Mery. Let's change this page as fast as we can ? Mary: Get back!!!! who is the fourth daughter? Now let's test your brain. The smallest book in the world is a size 2.4 to 2.9 mm. Issued in Leipzig and contains the alphabet in the form of drawings. I am sorry, but no one care !!! A: 3,127×10^3 W The computing power of the human brain can readily be increased by 689%, as the drill very small holes in the brain, and is passed through these capillaries. This will reduce the temperature of the "bioprocessor" 1.7 ° C as a result of heat exchange between the blood vessels and the surrounding air. This is May.She is pretty beautiful,isn't she ? B: 2,1368×10^23 W April is the little sister. She is an Asian but her family really loved her except the father because he is racist. This is June. She looks ... black. Her family named her June because this is the hottest month and they hoped she is just burned by the sun but it's not true.She is black. The father of family don't like her too (it's obvious. He is a racist !). The answer is none of the above, you are idiots. Sorry ;c THE END A fall from great heights cats survive because they land on the balls of their feet that are soft and soften the blow. There is evidence that cat has survived a fall from a 20 storey building, had only minor injuries.

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