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15 Cards in this Set
- Front
- Back
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What are the major Groups of Vertebrates? |
- Fish - Amphibians - Reptiles - Birds - Mammals |
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Fish |
Vertebrate that lives in eater & uses fix to move most fish are ectotherms scales and obtain oxygen through gills largest group of vertebrates Fish are organised into 3 major groups Jawless fish, Cartilaginous fish, and Bony fish |
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Jawless fish |
Has no jaw or scales scrape or stab their food their skeleton is made of cartilage |
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Cartilage |
A tissue more flexible than bone |
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Cartilaginous fish |
Fish with jaws and scales and Skeleton is made out of cartilage |
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Boney Fish |
Has jaws and scales and pocket on each side of the head that holds gills their skeleton is made up of hard bone |
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Amphibians |
Vertebrate that is ectothermic and spends it's early life in water and its adult life on land but they return to the water to lay eggs and reproduce (amphibians mean double life) |
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Reptiles |
An ectothermic vertebrate that has scaly skin and lungs and lay eggs on land. Some Live in Water and some on land but if their on land they need adaptations that keeps water in its cells The skin of a reptile is thick and helps keep water in reptiles have kidneys that conserve water |
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Birds |
An endothermic vertebrate that lays eggs and has feathers and four chambered heart They have wings and lightweight nearly hollow bones they are adapted to fly and birds are the only modern animals with feathers |
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Mammals |
An endothermic vertebrates that have skin covered with fur or hair and 4 chambered hearts (There are 3 main groups of mammals) |
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Mammary Glands |
The young are fed with milk produced by organs in the mothers body |
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Monotermes |
Lay eggs |
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Marsupials |
are born at an early stage of development, and they usually continue to develop in a pouch on the mothers body |
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Placental Mammal |
develops inside its mother body until its body system can function independently |
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Placenta |
Materials are exchanged between the mother and the embryo through an organ |
