What are some differences between natural selection and artificial selection?
The choice of giraffes with long necks from short-necked giraffes is an excellent example that natural selection. It is believed that years ago, both short-necked and long-necked Giraffes lived on the planet. As time passed the food available on the land began to become very scarce. So, the giraffes had to eat leaves on tops of tall trees. The giraffes with long necks were able to access these leaves, whereas the giraffes with shorter necks couldn’t. This is why the short-necked gradually disappeared because of the absence of food, however, the giraffes with long necks did not die. In this instance grasses are not growing. It is an environmental issue which leads to the choice of more fit individuals, and the demise of those who are less fit. Show
Sexual selection in peacocksPeacocks compete between male peacocks trying in search of a suitable partner. Male peacocks show natural selection, which is evident in beautiful and colorful tails that draw female peacocks. So, males who have dazzling tails succeed in attracting females , even though they are not able to replicate the male’s ability to eat or reproduce. So, males who have appealing tails are naturally preferred over those who have smaller tails. Similar mechanisms are observed in other species of birds, such as ducks and tropical birds , where males have more ornamentation than females. What is Artificial selection?
Examples of artificial selectionDog breedingThe breeding of dogs is a typical thing, and it’s thought to be true that purebred breeds that are found today were artificially selected from 14,000 years ago. The ancient breeding was mostly done in order to create an easier, faster and more useful version of the ancestors that were already in existence. The dogs were improved to improve their chances of winning being hunted and to guard its human. As time passed, and humans started to consider keeping canines as their pets their goal was changed to protect the home and to ward off the intruders. As a result, greyhounds and dogs were interbred to produce strong and energetic types of breeds. Today dogs are kept at home and serve as pets for the majority of people. In the end, artificial breeding was evolved to produce more pleasant and more adorable dogs such as bulldogs and poodles. Selection of cash cropsGenetically modified selection for crop varieties has been in practice for a lengthy time. It is believed that the common ancestor of all wheat species in existence in the present is the Triticum monococcumor einkorn grain initially cultivated in Asia around 40000 years ago. The plant was then crossed or inbred with species to increase the production and the variety of wheat. Today, various varieties of wheat are utilized for various purposes, such as beer production. The wheat used for beer production is different from the one used to make pasta and other types of noodles. The species are created by selecting specific varieties that can be used to serve their specific needs. What are some similarities and differences between artificial and natural selection?Natural selection is a nature-made selection, and artificial selection is a man-made selection. The main difference between natural and artificial selection is that natural selection produces a great biological diversity whereas artificial selection produces varieties of organisms such as improved crops and livestock.
What are two similarities and two differences between natural selection and artificial selection?
What is the difference between artificial and natural selection quizlet?What is the difference between Artificial Selection and Natural Selection? Natural Selection acts without the input of humans; Artificial Selection requires human input.
What are the 2 similarities between natural selection and artificial selection?Similarities. Artificial similar to natural in the sense that advantageous/desirable characteristics more likely to be passed on/selected. Both affect the characteristics gained by organisms over time.
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