The microscope wasn't invented yet.
The microscope wasn't invented yet.
Aristotle classified matter as either plants or animals. The main weaknesses in his classification was the fact it did not factor in specific species and was a general classification.
Aristotle separated plants from animals. Then animals were subdivided by land, water, and air. Plants were subdivided as small, medium, and large.
Aristotle was the first to classify plants into trees, shrubs and herbs. He also classified animals into those which contain red blood cells and tose which do not contain red blood cells.
Aristotle divided living things into plants and animals and then subdivided animals into land, water and air. He subdivided plants into small, medium, and large. This caused problem because some animals traveled by walking, swimming and flying.
because Aristotle had a system to classify organisms on earth that only included plants and animals like human beings. The reason why euglena would have been hard was because it is capable of photosynthesis, which is natural for a plant type organism, but it was also capable of moving which was not something that plants would do but something humans or animals would do.
Carolus Linnaeus
aristotle classified plants and animals based on the phylum, vertebra,invertebra,with their shape,height,etc........
animals and plants
Plants and animals
There is no longer any difference in the classification system of plants and animals. Before, it was that you would use the term division for classifying plants instead of phylum,used to classify animals. Now, phylum can be used to classify plants and animals.
lichens, corals, viruses, corals, viruses and carnivourous plants are difficult to classify :)