Classification in Biology

Classification in Biology
We can classify all the things in the world into two big groups : living things and non - living things . We call living things biotic factors and non - living things are called abiotic factors . ____________________ things have common characteristics as they can move , breathe , grow and have young ones . They also need food . ____________________ things are different because they do not have these ____________________ . Monkeys , trees , ____________________ and flowers are examples of ____________________ things but glass , water , ____________________ , metal and oxygen are ____________________ things .

We can subdivide ____________________ into two more groups : animals and plants . Why do we do this ? The answer is because they are ____________________ in many ways . Plants ____________________ move from place to place . They have not got brains , ____________________ , lungs or blood , but they are ____________________ . Also , plants can do something very important which animals cannot . Plants can make their own food . Grass , wheat , roses and gum - trees are all types of plants .
However , not all plants have ____________________ on them so we can divide them into two groups : flowering and ____________________ - flowering plants . Roses , daffodils and fruit trees all have flowers , but mushrooms , fungi and ferns do not .

We can also ____________________ animals into two groups : vertebrates and invertebrates . ____________________ such as dogs , people , birds and frogs have a ____________________ , whereas jelly - fish , butterflies and spiders do not . There are five important groups of vertebrates : mammals , birds , reptiles , amphibians and fishes .

So you can see that we put some things together in a group because they are similar in many ways and they have charac­teristics which divide or separate them from other things . In other words , we classify things . We make ____________________ so that it is easier to learn about things .