aulas bio 1 parte ii
TRANSCRIPT
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AULAS BIO 1APROFUNDAMENTO II
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Moluscos
Corpo mole Aquáticos ou terrestres Triblásticos Celomados
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Moluscos
Concha de carbonato de cálcio (CaCO3)
Sistema circulatório aberto (ausência de vasos)
Respiração: branquial, cutânea ou pulmonar
Excreção: nefrídios
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Moluscos
Corpo: cabeça + pé + massa viceral Rádula
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Moluscos
Manto
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Amphineura (poliplacóforos)
Quíton
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Scaphopoda
Dentáliun
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Gastropoda
Caramujo , lesma , caracol
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Pelecypoda (bivalves)
Ostras , mariscos mexilhões
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Cephalopoda
Polvos e lulas
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Anelídeos
Vermes segmentados (metamerizados)
Aquáticos ou terrestres Triblásticos Celomados
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Anelídeos
Respiração: cutânea ou pulmonar Circulação: fechada Pigmento respiratório Excreção: nefrídios
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Anelídeos
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Anelídeos
Oligoquetos (poucas cerdas): minhocas terrestres
Poliquetos (muitas cerdas): minhocas marinhas
Aquetos (hirudíneos): sanguessugas
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Anelídeos
Sanguessuga
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Anelídeos
Minhoca marinha
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Anelídeos
Minhoca terrestre
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Artrópodes
Apêndices articulados Tubo digestivo completo Triblásticos Celomados Circulação aberta Exoesqueleto de quitina Realizam mudas (ecdises)
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Classes
Insetos: moscas, formigas, borboletas....
Aracnídeos: aranhas, carrapatos, escorpiões...
Crustáceos: camarões, lagostas, siris...
Quilópodes:lacraias e centopeias Diplópodes: embuás
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Insetos
corpo: cabeça+tórax+abdome Respiração: traqueal Excreção: túbulos de Malphigui Patas: 3 pares
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Aracnídeos
Corpo: cefalotórax+abdome Respiração: filotraqueal Excreção: Glândulas coxais Patas: 4 pares
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Crustáceos
Corpo: cefalotórax+abdome Respiração: branquial Excreção: glândulas verdes Patas: 5 pares
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Quilópodes
Corpo: cabeça + tronco Respiração: traqueal Ex: lacraias e centopéias
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Diplópodes
Corpo: cabeça + tórax + abdome Respiração: traqueal Ex: embuá
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Crescimento
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Mudas (ecdises)
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Metamorfose nos insetos
Ametábolo
Hemimetábolo
Holometábolo
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Equinodermas
Fixos ou livres Simetria Radial Triblásticos Celomados Endoesqueleto calcário Respiração e excreção: difusão
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Equinodermas
Exclusivamente marinhos
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Classificação
Asteroidea : ex. estrela-do-mar
Echinoidea: ex. ouriço-do-mar
Ophiuroidea : ex. serpente-do-mar
Crinóidea : ex. lírio-do-mar
Holoturia : ex. pepino-do-mar
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Sistema Ambulacral
Locomoção, digestão e excreção
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Lanterna de Aristóteles
Dentes articulados Trituração dos alimentos
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Regeneração
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Cordados
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Características gerais
Triblasticos (endoderme, mesoderme e ectoderme)
Celomados Simetria bilateral Deuterostômios
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Características exclusivas Notocorda Fendas branquiais Tubo nervoso dorsal Cauda pós-anal
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Notocorda
Bastão flexível relativamente resistente queatua na sustentação do corpo e do tubonervoso.
Fendas faríngeas ou branquiais
Localizadas ao lado da faringe e dão origemàs brânquias nos cordados aquáticos
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Tubo nervoso dorsal
Nos cordados o sistema nervoso é tubular elocalizado na região dorsal do corpo.
Cauda pós anal
*Tais características estão presentes nos corda-dos pelo menos durante uma fase do desenvol-vimento embrionário
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CLASSIFICAÇÃO DOS CORDADOS
Protocordados(Acraniata)
Cefalocordados
Urocordados
EucordadosVertebrados(Craniata)
Ciclostomados (agnathos)
Peixes
Anfíbios
Répteis
Aves Mamíferos
(gnathos)
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Cephalocordados
Notocorda presente durante toda vida esten-dendo-se da cabeça a cauda
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anfioxo
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Urochordados ou tunicados
Notocorda presente somente na fase larval,restrita à cauda
Adulto séssil e apresenta uma tunica deproteção (tunicina – semelhante a celulose)
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tunicados
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Subfilo Vertebrata - Classe Agnatha
Peixes sem mandíbulas: Feiticeiras e lampréias
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Peixes
Respiração: branquial Circulação: simples e completa Coração: 1 átrio + 1ventrículo Excreta: amônia e uréia Pecilotérmicos
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Chonrichthyes Osteichthyes
ESQUELETO cartilaginoso Ósseo
BRÂNQUIAS Descobertas, sem opérculo.
Protegidas por opérculo.
CLOACA presente Ausente
BEXIGA NATATÓRIA ausente presente
EXCREÇÃO Ureia Amônia
EXEMPLOS Tubarão, quimera, arraia Tainha, dourado, bagre
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Fendas branquiais sem opérculo
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Fendas branquiais protegidas por opérculo
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Órgãos sensoriais
Linha lateral: sensível as vibrações Peixes ósseos
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Órgãos sensoriais
Amplolas de Lorenzini : estímulos elétricos
tubarões
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Osmorregulação
Bexiga natatória Peixes ósseos
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Osmorregulação
Glândula retal Peixes cartilaginosos
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Anfíbios
Respiração: branquial, cutânea e pulmonar
Circulação: dupla e incompleta Coração: 2 átrios + 1 ventrículo Excreta: ureia Pecilotérmicos
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Vertebrados - Anfíbios
Anuros: sapos, rãs e perecas
Urodelos: salamandras
Ápodes: cecílias e cobra-cegas
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Répteis
Respiração: pulmonar Circulação: dupla e incompleta Coração: 2 átrios + 1 ventrículo (crocodilianos: 2 átrios + 2 ventrículos) Excreta: ácido úrico Pecilotérmicos
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Coração dos répteis
3 cavidades
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Coração dos Crocodilianos
4 cavidades Mistura de sangue arterial e sangue
venoso Comunicação interventricular Crocodilo, jacaré e gaviá
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Órgãos sensoriais
Órgão de Jacobson: sensibilidade olfativa
Serpentes
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Órgãos sensoriais
Fosseta loreal: sensibilidade a radiação infravermelha (calor)
Serperntes
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Anexos embrionários
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Aves
Respiração: pulmonar Circulação: dupla e completa Coração: 2 átrios + 2 ventrículos Excreta: ácido úrico Homeotérmicos
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Sacos aéreos e ossos pneumáticos
Facilitam o voo.
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Glândula uropigiana
lubrificação e impermeabilização das penas
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Digestão das aves
Papo: armazenamento de alimento Proventrículo: estômago químico Moela: estômago mecânico
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Anexos embrionários