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: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
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: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in
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class="post-498 post type-post status-publish format-standard has-post-thumbnail hentry category-explicacoes category-quimica category-resumos tag-atomos tag-compostas tag-hidrogenio tag-liquido tag-materias tag-oxigenio tag-particulas tag-simples tag-substancias">
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Qualquer tipo de matéria é sempre formada por partículas minúsculas chamadas átomos. Atualmente são conhecidos 111 tipos de átomos, quimicamente diferentes. Cada um desse tipo representa um elemento químico, o qual recebe um nome e uma abreviação chamada símbolo. Exemplo: Elemento: Hidrogênio símbolo: H Carbono símbolo: C Esses tipos de átomos diferentes podem se agrupar das mais variadas maneiras possíveis formando uma infinidade de moléculas diferentes. Cada molécula passa então a representar um substância pura ou espéciequímica. Cada substância é representada por uma abreviação denominada fórmula. Assim: H² = Gás Hidrogênio I. Substâncias Simples: As substâncias simples são moléculas formadas por átomos de um mesmo elemento químico. exemplo: Devemos observar porém que há átomos…
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class="post-314 post type-post status-publish format-standard has-post-thumbnail hentry category-ciencias category-explicacoes category-resumos tag-celulas tag-faringe tag-fenomenos-da-respiracao tag-inspiracao-e-expiracao tag-laringe tag-oxigenio tag-pulmoes tag-tranqueia tag-vias-respiratorias">
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Dá-se o nome de respiração ao ato de inspirar e expirar. Na respiração, respiramos o ar atmosférico e dele absorvemos o oxigênio. O aparelho respiratório é composto dos seguintes órgãos: vilas respiratórias e pulmões. VIAS RESPIRATóRIAS As vias respiratórias são formadas por um conjunto de canais que têm a finalidade de conduzir o ar aos pulmões. Os canais são: fossas nasais, faringe, laringe, tranquéia, brônquios, bronquíolos e alvéolos pulmonares. FOSSAS NASAIS (nariz) São dois condutos que se abrem na face, formando o nariz. Têm como função principal filtrar o ar inspirado. Os pelinhos existentes em seu interior retêm parte dos micróbios e impurezas que entram junto com o ar. FARINGE Localiza-se logo após a boca. é…
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