Describe how characteristics help to classify organisms

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Characteristics can help to classify organisms apart. I.e. we can tell that a mammal (human), a fish is different by seeing that fishes live in water, humans live on land. Fishes breathe underwater by their gills while the mammals (humans) breathe oxygen with their lungs. Another example could be how reptiles and birds are different, the most obvious is where the birds have feathers and reptiles have rough skin with no feathers.

The last example is where the amphibians are cold-blooded, lay eggs and mammals (humans) are warm-blooded, and don’t lay eggs because the females have wombs. The mammals (humans) have hair and do live young but the amphibians; Fish, Reptiles and bird don’t have fur/hair and do not live young. Scientists use a different way in order to describe how characteristics can help to classify organisms.

They use the same method as the one above but also by splitting the organisms into groups for example; splitting an organisms in one of the 5 kingdoms which are; Animals, Fungi, Monera, Protista and Plants. Then splitting it even more ‘if it is a vertebrates (has a backbone) or an invertebrates (Does not have a backbone)’ and if the organism having for example a cell wall or not. Another way they use is by using their classification key.

Another Example Is From This;

The Characteristic of Beowulf
Beowulf was written in eighth century by an unknown author. It always shows the bravery throughout the story. The main character fought against monsters and was courageous often to the point of being superhero. His actions toward the monster Grendel that was terrorizing the Danes, showed that he was willing to help others. It is usually found that the hero often determines the fate of a nation or group of people. Beowulf helped the Danes and his people by killing Grendel, Grendel's mom, and the dragon. He had helped mankind a great deal and because of that, he was pointed as a king of the Geats. Beowulf’s good deeds and accomplishments had

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