The five kingdoms

GUILLERMO SANTAMARÍA5ºA

• Sciencists have identified nearly two million of Earth´s species,but they believe there are actually many more .To classify all living things we study their cellular structure and their nutrition.Acoording to this creiteria there are five kingdoms:

THE PLANT KINGDOM

• Plants are multicellular living things that make their own food.They make their food throughphotosynthesis.They cannot move becausetheir roots are fixed to the ground.

THE ANIMAL KINGDOM

• Animals are multicellular living things that feed on other living things.Most animals move to for age for food to find shelter or to escape predators.

THE ALGA AND PROTISTA KINGDOM

• AlgaeAlgae can be unicellular or multicellular.They make their own food but have no true tissues or organs.

• ProtozoaProtozoa are unicellular living things that feed on other living things.Examples of protozoaare amoebas and paramecium.

THE FUNGUS KINGDOM

• There are multicellular fungi,such as mushrooms and moulds ,and unicellular ones ,such as yeasts.Fungi do not have tissues or organs.They do not produce their own food,but feed to the remains of other living things.In addition,fungi,like plants,cannot move.

THE BACTERIA KINGDOM

• Bacteria are the simpest organisms on Earth.They are unicellular and are so small that they only visible through a microscope.The cells have no defined nucleus,so the internal components are dispersed in the cytoplasm.Most have a cell wall.