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isb6th vertebrates
isb 6th vertebrates
| Question | Answer |
|---|---|
| Characteristics of vertebrates | animals with endoskeletons |
| Examples of vertebrates | fish, amphibians, reptiles, birds, mammals |
| Endoskeleton | internal support system that grows along with the animal |
| Vertebrates | animals with vertebrae, or backbone |
| Characteristics of fish | Lateral line, swim bladder, gills |
| Gills | Remove oxygen from water and exanges it for carbon in the fish's blood. |
| swim bladder | Allows the fish to float high or low |
| lateral line | An organ in the sensory system that allows fish to sense objects and organisms that are near by |
| operculum | the gill cover of fishes and amphibians. |
| Examples of fish (3) | Jawless fish, Bony Fish, Cartilaginous fish |
| scales | One of the thin, small overlaping plates that cover most fish and reptiles and some other animal. |
| egg yolk | Part of the egg that provides food for the growing baby in the egg. |
| Characteristics of amphibians | Adults:They have two pairs of legs,they lay their eggs in water,they obtain oxygen through their skin,many have lungs,and their sensory organs are adapted for sensing on land. Young:They live in water, and they breathe with gills. |
| tadpoles | The larvae of frogs and toads |
| metamorphosis | The transformation of an animal from its larval form into its adult form. |
| Examples of amphibians | salamanders, frogs, toads |
| ectotherm | Animal whose body temperature changes with environmental conditions |
| Characteristics of reptiles | Have two pairs of legs (four limbs), have tough, dry skin covered with scales, optain oxigen from air using lungs, have sensory organs adapted for sensing on land and lay eggs with hard or leathery shells on land. |
| Examples of reptiles | Snakes, Turtles, Crocodiles, Geckos, lizards ... |
| keratin | A tough, insoluble protein substance that is the chief structural constituent of hair, nails, horns and hooves. |
| Characteristics of birds | they have feathers and a beak, four limbs: a pair of scaly legs and a pair of wings, their eggs have hard shells, and they are endotherms. |
| endotherm | animals that maintain a constant body temperature |
| incubation | The process of birds sitting on their eggs to keep them alive and warm |
| Examples of Birds | Hummingbird, Kiwi, Ostrich, Penguin, Parakeet, Eagle etc... |
| Characteristics of mammals | Have hair,specialized teeth,and produce milk to feed their young.They live on land or in water. |
| mammary glands | The glands that produce milk in female mammals. |
| endoderms | The innermost layer of an embryo that forms the digestive tract of an animal |
| gestation | The time when a mammal is developing inside it's mother's body. |
| placenta | A special organ that transports nutrients,water,and oxygen from the mother's blood to the developing embryo. |
| examples of mammals | mice,dogs,bats,dolphins,humans... |
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isb6th
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