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Natural selection and genetic modification - Coggle Diagram

- - - - steps for natural selection
        
        Individual organisms within a species display a wide range of variation in a particular characteristic.
        
        individuals with characteristics most suited to the environment are more likely to survive and to breed successfully
        
        the characteristics that have enabled these individuals to survive are then passed on to the next generation
      - evidence for natural selection
        
        Bacteria can evolve quickly due to their rapid reproduction. Bacterial mutations result in new strains. Some bacteria, such as penicillin-resistant bacteria, may develop resistance to antibiotics and become resistant to their destruction. Natural selection can be seen in the evolution of bacteria, which supports Darwin's theory of evolution.
      - evidence for evolution
        
        Fossil remains have been discovered in rocks dating back millions of years. The oldest rocks contain the fossils of the simplest organisms, while the newest rocks contain the fossils of more complex organisms. This backs up Darwin's theory of evolution, which claims that simple life forms evolved into more complex ones over time.
        Fossils provide evidence for the earliest forms of life. Scientists can learn how much (or how little) organisms have changed as life evolved on Earth by studying fossils.
        
        evidence for human evolution
        
        Ardi is a 4.4 million-year-old female human-like fossilised skeleton. Ardi's bones indicate that she could walk upright, but she had very long arms and big toes. Ardi's feet are made up of bones that suggest humans and chimps evolved separately.
        
        Lucy, a female human-like fossilised skeleton from 3.2 million years ago, is also a female human-like fossilised skeleton. Lucy's bones indicate that she walked upright, like a human, but with a small ape-like skull. Lucy's foot bones reveal that she had feet that were similar to modern humans', but with a lot more curved toes.
        
        Despite the fact that their limbs appear to be very different on the outside, many vertebrates have very similar bone structures. The pentadactyl (five-fingered) limb is the name given to this structure. This indicates that many vertebrates descended from a single ancestor.
        Crocodiles, birds, whales, horses, bats, and humans all have the same five-fingered bone structure, despite their appearance. This lends credence to Darwin's theory of evolution.