why do scientists use a classification system

why do scientists use a classification system

What is this strange animal? Itвs a platypus platypus, like a beaver. It has a bill and lays eggs, like a duck. What kind of animal is it? Is it a mammal, like a beaver? mammal Or is it a bird, like a duck? bird. Classification Classification is a way to organise living things. They are put in groups with similar features. groups with similar features A finch looks quite different to a peacock, but they both have beaks, wings, and. So both are classified as birds. Most animals that have fins are classified as fish, fish в like sharks, sardines and goldfish. ...

 why was chocolate important to the mayans

why was chocolate important to the mayans

was one of the most desired foods of Mesoamerica and was consumed by the, and civilizations, amongst others. Its consumption even spread via trade routes to other parts of the Americas including the Chaco in modern New Mexico. The earliest known use of chocolate was by the Olmec around 1900 BCE and, enjoyed as a drink, it was drunk from special round jars known as tecomates. The Maya used tall cylinder beakers for drinking chocolate, and these very often had text on the rim indicating their intended use. The Aztecs also had richly decorated tall cups specifically reserved for chocolate drinks. It may be that such conspicuous vessels were designed to impress onlookers that the drinker had the means and status to enjoy such a prized drink. Chocolate is made from the beans of cacao pods

 why do people have outie belly buttons

why do people have outie belly buttons

So are you an innie or an outie? What are we talking about? buttons, of course! So which one are you? An innie or an outie? Go ahead. Take a peek. It's OK if you don't remember offhand. As their names imply, innie buttons go inward, while outie buttons stick out. Which one do you have? If you're like most people, you probably have an innie. Don't worry, though, if yours is an outie. There are plenty of people with outie buttons, too. But what's the deal with buttons anyway? What are they for and why do some go in while others stick out? If you've been born, it doesn't matter whether you're a baby, a kid, or an adult. Your is pretty much useless. Sure, it collects and dirt from time to time. If you're in a pinch, it might hold just enough ketchup (or is it? ) for a small order of. But for

 why do programmers confuse halloween and christmas

why do programmers confuse halloween and christmas

БWhy do programmers always mix up Christmas and Halloween. б Because Dec 25 is Octб 31Б Get it? б If you do, then you should probably stop reading here because this is likely to be old news to you. б If youБd like to know why itБs so damned funny, and learn a little computing basics for good measure, read on! If youБre not a programmer, you (hopefully! ) recognise the abbreviations for December 25th (Dec 25) and October 31st (Oct 31), and (hopefully!! ) recognise them as Christmas and Halloween. б So far, so good, but not very funny even to a programmer. To a programmer, the abbreviations БDec 25Б and БOct 31Б can also mean something entirely different. б Dec 25 is an abbreviation for БDecimal 25Б and БOct 31Б is an abbreviation for БOctal 31Б, and for reasons that IБd like to explain,

 why do we need to forecast demand

why do we need to forecast demand

In business, companies seek ways to gain an edge over competitors through marketing strategies, whether they are offering a product or a service. By forecasting demand for future periods, a company can alter its business and marketing strategy to satisfy expected demand by its customer base. For example, by monitoring consumer demand at specific prices, a business can stock items that sell well and scale back on items with poor sales. The company can also use this information to make adjustments to its pricing strategy, focusing on higher margin items or products that are in high demand. By following demand closely and making forecasts, the business gains an advantage over competitors who fail to identify a shift or change in demand 24. 08. 15 Sales forecasting is an important tool for

 why is ammonia highly soluble in water

why is ammonia highly soluble in water

It s pretty hard to draw Lewis structures in this format, but I can link you: For water: For ammonia: Ammonia is very soluble in water because both molecules are capable of hydrogen bonding. Hydrogen bonding can happen when two conditions are met: (A) a molecule has hydrogen atoms bonded directly to extremely electronegative atoms like O, N, or F, and (B) the electronegative atoms have lone pairs of electrons. Both conditions are met in water and ammonia. The extremely electronegative oxygen and nitrogen atoms draw electrons away from the hydrogens to which they are bonded, which leaves the hydrogen atoms nearly stripped of electrons and carrying a partial positive charge. The positive charge of the hydrogen atoms is strongly attracted to the lone pairs on other oxygen and/or nitrogen

 why do prickly pear cactus turn purple

why do prickly pear cactus turn purple

This has been going on for a while (about a year), one of my cacti has turned purple. I've just replanted it after its pot fell and broke (no, it did not spend the year on the ground). What is the cause of this and what should I do about it? I put the cacti out on the open balcony in the summer and put them on the windowsill for the rest of the year, so the usual temperature they are exposed to is 20-35C (as low as 10C during the night). I water them twice a month during the summer and once a month otherwise with tap water, about 100 ml per plant. The height of the cactus is about 6. 5 cm. The cactus in question spends most of its time very close to my other cacti (~10 cm), and some of them don't look too hot, pictures below. ...

 why do we argue so much quotes

why do we argue so much quotes

In a short time a group of commissioners arrived to begin organization of a new Indian agency in the valley. One of them mentioned the advantages of schools for Josephs people. Joseph replied that the Nez Percs did not want the white mans schools. Why do you not want schools? the commissioner asked. They will teach us to have churches, Joseph answered. Do you not want churches? No, we do not want churches. Why do you not want churches? They will teach us to quarrel about God, Joseph said. We do not want to learn that. We may quarrel with men sometimes about things on this earth, but we never quarrel about God. We do not want to learn that. We can all forgive and forget, right?! ...

 why the world will end in 2012

why the world will end in 2012

In 65 A. D. , the Roman philosopher Seneca warned that the planet would Бburn in [a] universal fire. Б While in lava and ash 14 years later, the end wasn't exactly nigh for the entire planet. Many 17th-century Christian Europeans worried that the world would end in 1666, a year containing the ominous Number of the Beast, described in the Book of Revelation. The 1910 arrival of Halley's comet whipped some citizens of Rome into such a frenzy, they stockpiled oxygen tanks, fearful that the comet's tail would poison Earth's atmosphere. (Also find out. ) On May 5, 2000, the planets Mercury, Venus, Mars, Jupiter, and Saturn aligned in the skyБa conjunction that some authors claimed would bring about earthquakes, volcanoes, and a sudden onslaught of melting ice. It didnБt. Since 2008, the has

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