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DIFERENCIAS ENTRE LOS VERTEBRADOS E INVERTEBRADOS
EJEMPLOS |
VERTEBRATES
Animals with backbone and skeleton There are five tipes of vertebrates: - mammals - reptiles - birds - fish - anphibians INVERTEBRATES Animals with no backbone or skeleton. - arthropods - molluscs |
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CARACTERÍSTICAS DE LOS VERTEBRADOS - MAMMALS
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REPRODUCTION= almost all mammals are viviparous
NUTRITION=can be carnivores, herbivores or omnivores RESPIRATION= with their lungs PHYSICAL CHARACTERISTICS=most mammals have fur or hair to keep them warm cows = hervibores and viviparous (calves=terneros) pigs = omnivores and vivparous (piglets) sheep = herbivores and viviparous (lambs) |
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CARACTERÍSTICAS DE LOS VERTEBRADOS - REPTILES
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REPRODUCTION=most are oviparous. lay eggs on land
NUTRITION=most are carnivores and some omnivores. eat plants, insects and small animals RESPIRATION=they breathe with their lungs PHYSICAL CHARACTERISTICS= - most have four limbs (extremidades) but some have no limbs. - Reptiles have scales and some a shell to protect their body. - Reptiles can walk, run, slither (deslizar) snake lizard turtle |
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CARACTERÍSTICAS DE LOS VERTEBRADOS - BIRDS
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REPRODUCTION=are oviparous. they lay eggs. they incubate the eggs by sitting on them
NUTRITION=can be carnivores, herbivores or omnivores. have beaks depending on the food they eat RESPIRATION=breathe with their lungs PHYSICAL CHARACTERISTICS= -have feathers to keep warm and attract other birds -have wings to fly eagles=eat small animals / hooked beaks penguins=eat fishes / long and sharp beaks hummingbirds=eat nectar from inside flowers / long and thin beaks |
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CARACTERÍSTICAS DE LOS VERTEBRADOS - FISH
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REPRODUCTION=most are oviparous
NUTRITION=can be carnivores, herbivores, omnivores RESPIRATION=with their gills (branquias) PHYSICAL CHARACTERISTICS= - they have fins (aletas) and tail to move - scales (escamas) to protect their body *how do fish breathe water goes into their gills. these separate the dissolved oxygen from the water. the oxygen is absorbed inside the gills and goes into the fish's blood. this is why fish need water to breathe. |
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CARACTERÍSTICAS DE LOS VERTEBRADOS - AMPHIBIANS
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REPRODUCTION=are oviparous. babies live an grow in the water. they change through metamorphosis (tadpole=renacuajo to frog)
NUTRITION= most are carnivores. they eat small vertebrates such a mice (ratones) or invertebrates such as worms (gusanos) RESPIRATION= babies breathe with the gills, adults with the lungs also through their skin PHYSICAL CHARACTERISTICS= -most have 4 limbs (extremidades) -moist skin (piel húmeda) - webbed feet to swim (pies palmeados) |
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CARACTERÍSTICAS DE LOS INVERTEBRADOS
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Do not have a backbone. They are oviparous
ARTHROPODS Biggest group of invertebrates There are four subgroups: *INSECTS (ex. bee) *ARACHNIDS (ex. spider) *MYRIAPODS (ex. centipede=cienpiés) *CRUSTACEANS (ex. crab) MOLLUSCS 3 subgroups: *GASTROPODS (ex. snail) - soft body -protective shell -2 eyes on the end of the antennae -live on land and water *BIVALVES (ex. clams) -soft body -2 shells connected -live in water *CEPHALOPODS (ex. cuttlefish=calamar) -soft body -most have internal shell or no shell -large head with tentacles -live in water OTHER INVERTEBRATES *CNIDARIANS (ex. jellyfish) *ANNELIDS (ex. earthworm) *ECHINODERMS (ex. starfish ) |
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EXPLICA CON TUS PALABRAS EL CICLO DE VIDA DE UN ANFIBIO
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1. Un anfibio pone huevos
2. El renacuajo eclosiona y el renacuajo* sale del cascarón *respira por las branquias 3. Primero desarrolla las patas traseras 4. Después las delanteras 5. Empiezan a perder la cola 6. Pierden la cola y salen del agua. *respiran por sus pulmones. |
