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UNIT 5. VERTEBRATES.
SCIENCE 6.
C.E.I.P. SANTA ANA (Madridejos)
VERTEBRATES are animals with a backbone. They have an internal skeleton formed by bones and a spinal column. Their body is divided in head, trunk and limbs.
CONTENTS: 1.- Characteristics of vertebrates. 2.– Classification: 2.1.– Fish 2.2.– Reptiles 2.3.– Amphibians 2.4.– Birds 2.5.– Mammals
1.– CHARACTERISTICS OF VERTEBRATES: Vertebrates have some common characteristics: 1.– They are multicellular organisms. 2.- They have bones that form a skeleton with a backbone. 3.– They are heterotroph organisms (consumers). 4.– Their body is divided in head, trunk and limbs. 5.– They can be aquatic or terrestrial. 1
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2.– CLASSIFICATION OF VERTEBRATES: Scientists study vertebrates and they classify them depending of some common characteristics. We are going to study them thinking in several aspects like: 1.– Habitat: so they can be terrestrial or aquatic. 2.– Body shape: 3 4 .– They can be covered by scales, feathers, skin, fur… .– Their limbs: fins, wings, legs… We divide VERTEBRATES into five groups: 3.– Body systems: Fish, reptiles, amphibians, birds and mammals. .– Circulatory system: cold or warm blooded… .– Respiratory system: gills, lungs, skin… 4.– Food: they can be herbivores, carnivores, omnivores... 5.– Reproduction: Oviparous, viviparous, undergo a metamorphosis... Habitat
Body shape
Terrestrial Covered by: Scales Aquatic Feathers Skin Fur...
Body systems
Food Herbivores Carnivores Omnivores
Circulatory: Cold blooded Warm blooded
Reproduction Examples Oviparous Viviparous Metamorphosis
Fish: Reptile: Amphibian: Bird: Mammal:
shark snake frog eagle lion
Limbs: Respiratory: Fins / wings / legs Gills / lungs / skin 5
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USEFUL WORDS: .– skeleton .– backbone .– limbs .– aquatic .– feathers .– fur .– fin .– wing .– herbivore .– carnivore .– oviparous .– viviparous .- warm blooded
.– head .– trunk .– terrestrial .– scales .– skin .– limbs .– gill .– lung .– omnivore .– metamorphosis .– cold blooded