Classifying animals
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This document classifies and describes different groups of animals. It divides animals into two main groups: invertebrates without backbones, which make up over 96% of species and include arthropods, mollusks, worms, sponges, and cnidarians; and vertebrates with backbones, which include fish, amphibians, reptiles, birds, and mammals. It provides distinguishing characteristics of each group, such as their body structure, temperature regulation, habitat, and locomotion.
Classifying animals
- 1. Classifying Animals Chapter 7, Lesson 3 http://gardenofeaden.blogspot.com/2011/10/cheetah.html
- 2. Standard: S5L1a. Demonstrate how animals are sorted in to groups (vertebrate and invertebrate) and how vertebrates are sorted into groups (fish, amphibian, reptile, bird, and mammal). Main idea: The differences between animals determine how they are classified.
- 3. Characteristics of Animals •Many –celled 3d-screensaver-jam.com •Require oxygen http://4.bp.blogspot.com/-NO- rBvhKTSM/TmdtDZWU1GI/AAAAAAAAAZo/tSuesn1 •Eat food ug7k/s400/1-4-Funny-animals4.jpg •Most move from place to place •Reproduce sexually
- 5. Animal Species Over 96% of 1% 1% all animals 1% 4% 4% today are 5% Arthopods invertebrates! Mollusks Worms Vertebrates Sponges Cnidarians 84% Echinoderms
- 6. Invertebrates Animals without a backbone are invertebrates. Over 96% of the animal species are invertebrates. Review: Symmetry- a matching pattern of body shape. Radial symmetry – body parts arranged equally around a middle point Bilateral symmetry – bodies with two similar halves
- 7. Bilateral Symmetry Radial Symmetry
- 9. Cnidarians – The Stinging Animals • Jellyfish and coral • Simple digestive systems with mouths •Radial symmetry
- 10. Echinoderms • Starfish, sea urchins, and sea cucumbers •Means “spiny skin” • Sucker-like parts to catch prey
- 11. Arthropods • lobsters, crabs, spiders, and insects • largest group of animals • jointed parts surrounded by an exoskeleton (hard covering) •Bilateral symmetry
- 12. Sponges • Lack tissues, organs and true body symmetry •Most live in oceans, a few live in freshwater •Filter bits of food from water that passes through them
- 13. Mollusks •Clams, oysters, snails, squi ds, octopuses •Soft bodies – most have shells •Live, eat & move many different ways
- 14. Worms • Includes flatworms, roundworms & segmented Worms. •Bilateral symmetry •Heads and simple organ systems •Some are parasites – they live and feed off the body of a host
- 15. Let’s Review Invertebrates- Be ready to take the quiz!
- 16. Let’s review!! Vertebrates – animals with a backbone Cold-blooded – the temperature of the animal depends on the temperature outside their bodies Warm-blooded – the animal’s body maintains its own heat Let’s learn about Vertebrates!!
- 17. Cold-blooded Vertebrates- Ectotherms • Reptiles • Amphibians • Fish The body temperature of a cold- blooded (ectotherms) animal depends on the temperature outside their bodies.
- 18. Fish • Most have a bony skeleton (sharks have cartilage skeleton) •Gills to breathe in water •Most cold-blooded •Scales •Swim bladder
- 19. Amphibians • frogs, toads, salamanders, ne wts included • need to live close to water • some have lungs • some breathe through skin • need water to reproduce • salamanders & newts •have tails •most live near water – some in deserts though
- 21. Warm-blooded Vertebrates - Endotherms •Birds •Mammals Maintain constant internal body temperatures – body cells produce heat
- 22. Birds • live almost anywhere in world • feathers • beaks instead of teeth • some eat mammals, fish and other birds • some eat insects • some eat plants/seeds
- 23. Mammals Humans are mammals Most complex organs & nervous system large brain complex behaviors hair – even whales have whiskers feed milk to young most have teeth can move place to place
- 24. Let’s review vertebrates – be ready to take the quiz!