https://padlet.com/hglenville/wwujna8p8xwds9e7 en-us 2022-02-23 14:28:38 UTC 2022-03-03 05:18:18 UTC hello@padlet.com https://padlet.com/hglenville/wwujna8p8xwds9e7/wish/2067176554 Selective breeding is a form of fake/man made/artificial selection in which organisms with certain characteristics are picked by humans because they are helpful in someway or another. Breeding is then done to produce offspring with the same characteristics. A good example of selective breeding si with Dogs. Dogs have evolved from wolf-like animals. Basically all household dog breeds come from selective breeding.  It is thought that the most docile wolves were accepted around human campsites, which was an advantage to the population because they were able to feed on the scraps of food that humans threw out. The wolves who lived at the campsites had a more docile gene and when they reproduced the docile gene was passed along to their offspring which is natural selection but eventually humans noticed this docile gene and choose the wolfs with this and breed them. Now a day dogs are bred for traits that benefit humans, from the fastest dogs for racing to work dogs to cute pet dogs. Because of this there are around 400 breeds of dogs today. ]]> 2022-02-26 01:38:01 UTC https://padlet.com/hglenville/wwujna8p8xwds9e7/wish/2067176554 https://padlet.com/hglenville/wwujna8p8xwds9e7/wish/2075112325 Scientists look for evidence of evolution and relationships between organisms by comparing their anatomy. The more two organisms have in common the more closely they are related. If a structure, such as an arm, is said to be homologous to the flipper of a dolphin, it means that these structures share the same origin and ancestral form. Despite their different appearance and function, the human arm and the dolphin flipper share a similar arrangement with bones. Divergent evolution is when two separate species have a similar structure, but use it in different ways because of their environment. Adaptive radiation is a process in which organisms rapidly diverge from the form of the original species into several new forms specialized to make use of different environments. This can lead to divergent evolution and the development of a new species. The opposite of a homologous structure is an analogous structure. This means that the function is similar, but the structure is not. Convergent evolution is when organisms that are not closely related evolve similar structures that are used for similar purposes, which is often due to similarity of habitat and surroundings. Homologous genes, DNA or other biological molecules, as well as embryo anatomy are often analysed in order to determine evolutionary relationships between organisms.]]> 2022-03-03 05:16:38 UTC https://padlet.com/hglenville/wwujna8p8xwds9e7/wish/2075112325