Transcript Animals
Living and Changing I can list features that can be used to classify the five groups of living beings Why do we classify organisms? • There are millions of species on our planet. It would be difficult if we just tried to describe and name each one individually. Although species can be very different from each other, many of them have similar features that allow us to put them into groups. • Putting different species into different groups according to their features is called classification. The Classification System Scientists across the world all use and recognise the same classification system. In this classification system they start off using very big groups that include a lot of animals, and then move down to smaller groups that do not include as many animals. The biggest groups are called the KINGDOMS. All living things are classified into five different kingdoms. Animals Organisms Jellyfish, worms, arthropods, molluscs, echinoderms, amphibians, fish, reptiles, birds and mammals. Plants Seed bearing plants and non-seed bearing plants Monerans Bacteria and cyanobacteria Protists Fungi Single-celled and multicellular organisms without tissues Moulds, mushrooms and toadstools Animals Vertebrates These animals have a backbone. They have a firmer body because of the muscles that connect to their skeleton. Invertebrates These animals do not have a backbone. They have soft inner bodies which are held in shape by a flexible covering of outer cells or by a hard covering called an exoskeleton. Animals Vertebrates These animals have a backbone. They have a firmer body because of the muscles that connect to their skeleton. Invertebrates These animals do not have a backbone. They have soft inner bodies which are held in shape by a flexible covering of outer cells or by a hard covering called an exoskeleton. Fish •Live in water •Breathe with gills •Streamlined bodies •Have cartilage or bony skeleton •Cold blooded •Mostly lay eggs Amphibians Amphibians •Moist skin •Lay their eggs in water •Larvae have gills and live in water •Adults have lungs and live on land •Cold blooded Reptiles Reptiles •Have dry, scaly skins •Egg laying •Breathe with lungs •Cold blooded Birds Birds •Have feathers and wings •Lay eggs with hard shells •Breathe with lungs •Warm blooded Mammals Mammals •Have body hair or fur •Have mammary glands that produce milk •Warm blooded Animals Invertebrates These animals do not have a backbone. They have soft inner bodies which are held in shape by a flexible covering of outer cells or by a hard covering called an exoskeleton. Cnidarians Invertebrates •Hollow bodied •Mouth is the only body opening and is surrounded by tentacles •Uses sting cells to paralyse prey Flatworms Invertebrates •Flat thin bodies •Digestive system has only one opening •Animals are both male and females •Mostly parasites True worms Invertebrates •Rounded bodied •Bodies made of segments Molluscs Invertebrates •Not segmented •Body in three continuous parts with head, body and foot •Have one or two shells Echinoderms Invertebrates •Spiny skinned •Body in five parts •Central mouth with gills Arthropods Invertebrates •Hard exo-skeleton on outside of body •Has eyes and mouth •Body divided into more than one segment Crustaceans Arachnids Insects Centipedes & Millipedes Animals Vertebrates Mammals Fish Reptiles Amphibians Birds Invertebrates Cnidarians Flatworms True worms Molluscs Echinoderms Arthropods The Odd One Out Look at the names of the organisms below. In terms of classification which of these is the odd one out and why. sprat tuna shark whale trout seahorse salmon perch sturgeon flounder The whale is the odd one out. All of the rest are fish, a whale is a mammal. The Odd One Out The Odd One Out Look at the names of the organisms below. In terms of classification which of these is the odd one out and why. kiwi penguin duck raven robin owl pigeon platypus swan eagle The platypus is the odd one out. All of the rest are birds, a platypus is a mammal. The Odd One Out The Odd One Out Look at the names of the organisms below. In terms of classification which of these is the odd one out and why. ladybird horse fly caterpillar moth scorpion ant silverfish cicada lice cockroach The scorpion is the odd one out. All of the rest are insects, a scorpion is an arachnid.