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Period 5

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House cats have evolved from wild cats in Asia. But rather then evolving by themselves humans caused the evolution. Around 10,000 years ago Egyptians began to build a relationship with wild cats, they even worshiped cats. In other parts of the world they were kept around to control rodent problems in agriculture. These were the first steps to the modern house cat. Over time cats have been "slayed" and domesticated. When humans migrated with cats this caused them to evolve to have things like long hair for cold weather. Humans also caused evolution when they took advantages of genetic mutations like bob-tails (an abnormally short tail) and breading cats with super short legs. Taking advantages of caused a genetic mutation to become a new bread of cat. Now cats have evolved to be smaller and friendlier. A similar thing has happened to many other dog breads. For example dachshunds were much larger 50 years ago but, now because of humans they have evolved to be much smaller. Humans can speed up the process of evolution by breading cats with genetic mutations and selling them. This will probably continue to happen. This has happened with plenty of other domesticated animals too, such as horses, dogs, and cows. Though some of the breading is causing animals to evolve badly. For instance breading these animals can transfer health problems from one bread to another. In short, the modern house cat has come a long way through the years and continues to change.

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Differences in molecular similarities can be used to determine degrees of relationships between different species

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The theory that embryos go through evolutionary stages while developing

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An organ that has lost use because of evolution

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When different species have a similar bone or organ that have an alike function

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When a trait dies out due to individuals with the trait dieing or not reproducing

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The passing of genetic traits through what the female prefers

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Divergent, Parallel and Convergent evolution

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Divergent, Parallel and Convergent evolution

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Divergent-  When a species  evolves and splits into 2 new species, the 2 new species now share a common ancestor
Parallel - When two or more species living in the same envirolment evolve similarly
Convergent - When species that are not related evolve to have similar traits due to the environment

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Genes can be transferred to a new population when animals migrate causing that population to evolve because of the new genes from a different population

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A mutation in evolution can mean an organism mutated and this caused the species to evolve

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Natural Selection - When individuals of a species survive because of a special trait that not all of the species has while the rest die off

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Natural Selection - When individuals of a species survive because of a special trait that not all of the species has while the rest die off