How can we divide the animal kingdom?
Classification is all about organising residing issues into teams. The members of any group all possess a shared attribute – it’s this attribute or characteristic that defines the group.
Taking the animal kingdom for example, we are able to see that it’s cut up into two clear teams:
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Invertebrates – animals with out a spine. Vertebrates – animals with a spine.
The animals have been divided into two teams based mostly on the presence or absence of a spine. The spine is the observable characteristic that defines whether or not the animal is a vertebrate or an invertebrate.
These teams are divided into smaller ‘sub-groups’.
Sponges, corals, worms, bugs, spiders and crabs are all sub-groups of the invertebrate group – they don’t have a spine.
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Fish, reptiles, birds, amphibians and mammals are completely different sub-groups of vertebrates – all of them have inside skeletons and backbones.
The animals that belong to those sub-groups all share the observable options of that group. Simply as all of the vertebrates have backbones, all birds have feathers and lay eggs, and all mammals have fur and suckle their younger.
To see discover out extra in regards to the observable options of those sub-groups and to see how all of them match collectively you may take a look on the relationship ‘tree’ – or what we prefer to name The tree of life.
Are you able to reply these questions? Click on on a query to find the reply. What number of residing issues are there on the planet? What are kingdoms? How do scientists classify residing issues? How can we divide the animal kingdom? What’s the tree of life? If all of it already, return to the Homepage or play one in all our Video games!