Questões: Universidade Estadual do Ceará (UECE) — com gabarito

A Astrobiologia, uma ciência moderna que trata de investigar a existência de moléculas orgânicas em outros planetas, asteroides e meteoros, aponta em pesquisas recentes a “importação” de aminoácidos por meteoritos que caíram na Terra. Tais moléculas são de grande relevância para o estudo da vida, pois são

Os organismos vivos interagem com o meio ambiente visando manter um ambiente interno que favoreça a sobrevivência, o crescimento e a reprodução. O oxigênio molecular (O2) obtido da atmosfera é vital para organismos aeróbios. Entretanto, espécies reativas formadas intracelularmente a partir do oxigênio ameaçam a integridade celular por meio da oxidação de biomoléculas, e podem comprometer processos biológicos importantes. Marque, entre as opções abaixo, a que apresenta exemplo de enzima antioxidativa que pode minimizar danos causados ao organismo pelas espécies reativas de oxigênio.

A molécula de DNA armazena informação genômica que é transcrita e traduzida por mecanismos elegantes como os de transcrição e tradução. Entretanto, entre os distintos indivíduos biológicos construídos por mensagem contida no DNA, há uma singularidade biológica que se repete, mas se diferencia pelo modo como esta é organizada. Essa descrição corresponde à(s)

As reações metabólicas consistem em intricados e elegantes mecanismos os quais são responsáveis pela manutenção e pelo equilíbrio da dinâmica da vida. A estrutura celular que tem responsabilidade pelo elegante mecanismo da síntese de moléculas de ATP, um trabalho indispensável à manutenção dos seres vivos, já que essa área se responsabiliza por energia, é denominada

A cada nascimento de um ser humano a probabilidade de ser do sexo feminino ou do sexo masculino é representada corretamente pela seguinte porcentagem:

Ligações que ocorrem entre as moléculas de água e que são fundamentais nos processos bioquímicos celulares são denominadas

A pedra fundamental para a relação funcional entre genes e enzimas foi assentada em 1902 por William Bateson. O estudo do metabolismo da fenilalanina está inserido nesse contexto científico e pessoas que apresentam a fenilcetonúria, ou PKU (de phenyl ketonura) são aquelas acompanhadas de grave retardamento mental e físico. Pessoas com genótipo PP não conseguem produzir a enzima fenilalanina-hidroxilase, o que resulta no acúmulo de fenilalanina no sangue e, por conseguinte, o quadro clínico citado (BURNS; BOTTINO, 1991). Ao ser diagnosticado um bebbê com PKU, o procedimento correto a ser feito é

    RIO DE JANEIRO — Pope Francis on Thursday delivered some of his most politically provocative remarks since his papacy began this year, hopping from his popemobile to walk through a slum in this city before urging young people to fight against corruption, a leading grievance behind the huge street protests that shook dozens of Brazilian cities in June.

    “Do not grow accustomed to evil, but defeat it,” Francis said at the favela, or slum, of Varginha, in an area that has commonly been known here as the Gaza Strip for its gun battles and drug trafficking in the past. “Do not lose trust, do not allow your hope to be extinguished,” he added, acknowledging that it was common for some to “grow disillusioned with news of corruption.”

    By singling out corruption in a folksy visit to a Brazilian favela on his first trip abroad as pope, Francis, an Argentine-born Jesuit, emphasized his aim to refocus the Roman Catholic Church on the neglected margins of society, especially in Brazil and other parts of Latin America where the popularity of evangelical churches has surged among the poor in recent decades.

    In a nod to the Brazilian political authorities who have warmly welcomed him, Francis also praised the government’s antipoverty programs and did not specifically mention the anti-establishment protests in Brazil. But he did critique Rio de Janeiro’s so-called pacification project in the city’s slums, in which security forces assert control over lawless areas.

    “No amount of pacification will be able to last, nor will harmony and happiness be attained in a society that ignores, pushes to the margins or excludes a part of itself,” the pope said in Varginha, a slum that has recently been subjected to pacification. In a remark that could resonate in Latin America and in the United States, which is also grappling with the widening disparity between the haves and the have-nots, Francis said that a society “impoverishes itself” by perpetuating such inequality.

    Care for the poor and marginalized is an integral part of Catholic teaching, and a concern of many popes and encyclicals, including those by Francis’ predecessor, Benedict XVI. But Francis has made it a hallmark of his young papacy, telling journalists in Rome days after his election, “How I would like a church that is poor and for the poor.” He has demonstrated that ideal by living relatively humbly as pope: in a communal guesthouse rather than the opulent papal apartment, wearing a pectoral cross of iron instead of gold, flying commercial. He recently told priests that they should not drive fancy cars, and he has traveled around Rio this week in a compact Fiat.

    “He is helping to wake people up,” said Natalia Morais, 21, a nursing student from Minas Gerais State who traveled to Rio to see the pope as part of World Youth Day, a conference attended by hundreds of thousands of Catholic youth. “When the pope talks, political leaders listen, and that’s what’s needed in Brazil, where our protests are about their corruption,” Ms. Morais said.

    Reaching beyond Brazil, Francis told Argentines who came here for the conference that “the church must be taken into the streets” in a struggle against complacency. “Stir things up, cause confounding, but do not diminish faith in Jesus Christ,” he said in Spanish.

    In each of Francis’ public appearances, he has been accorded a rock-star reception. On an uncommonly cold and rainy morning, hundreds of residents lined the narrow, muddy sidewalks of the Varginha favela to glimpse the first pope from the Americas, who obliged by stopping often to touch and bless people.

    Many onlookers had made their own shirts to commemorate the event, with a photo of Francis. Others draped themselves in Brazilian flags and waved banners bearing his image. Residents darted in and out of their homes, checking their televisions and radios to learn the pope’s whereabouts and calling the information out to their neighbors standing on wet rooftops to get a better view.

    Sônia Curato, 48, a manicurist, said the pope’s visit was different from that of other leaders. “Politicians come all the time. They make promises and leave,” she said. “He is a very simple person. You can tell that. He has charisma. He speaks to the people, doesn’t like going around in an armored car.”

    RIO DE JANEIRO — Pope Francis on Thursday delivered some of his most politically provocative remarks since his papacy began this year, hopping from his popemobile to walk through a slum in this city before urging young people to fight against corruption, a leading grievance behind the huge street protests that shook dozens of Brazilian cities in June.

    “Do not grow accustomed to evil, but defeat it,” Francis said at the favela, or slum, of Varginha, in an area that has commonly been known here as the Gaza Strip for its gun battles and drug trafficking in the past. “Do not lose trust, do not allow your hope to be extinguished,” he added, acknowledging that it was common for some to “grow disillusioned with news of corruption.”

    By singling out corruption in a folksy visit to a Brazilian favela on his first trip abroad as pope, Francis, an Argentine-born Jesuit, emphasized his aim to refocus the Roman Catholic Church on the neglected margins of society, especially in Brazil and other parts of Latin America where the popularity of evangelical churches has surged among the poor in recent decades.

    In a nod to the Brazilian political authorities who have warmly welcomed him, Francis also praised the government’s antipoverty programs and did not specifically mention the anti-establishment protests in Brazil. But he did critique Rio de Janeiro’s so-called pacification project in the city’s slums, in which security forces assert control over lawless areas.

    “No amount of pacification will be able to last, nor will harmony and happiness be attained in a society that ignores, pushes to the margins or excludes a part of itself,” the pope said in Varginha, a slum that has recently been subjected to pacification. In a remark that could resonate in Latin America and in the United States, which is also grappling with the widening disparity between the haves and the have-nots, Francis said that a society “impoverishes itself” by perpetuating such inequality.

    Care for the poor and marginalized is an integral part of Catholic teaching, and a concern of many popes and encyclicals, including those by Francis’ predecessor, Benedict XVI. But Francis has made it a hallmark of his young papacy, telling journalists in Rome days after his election, “How I would like a church that is poor and for the poor.” He has demonstrated that ideal by living relatively humbly as pope: in a communal guesthouse rather than the opulent papal apartment, wearing a pectoral cross of iron instead of gold, flying commercial. He recently told priests that they should not drive fancy cars, and he has traveled around Rio this week in a compact Fiat.

    “He is helping to wake people up,” said Natalia Morais, 21, a nursing student from Minas Gerais State who traveled to Rio to see the pope as part of World Youth Day, a conference attended by hundreds of thousands of Catholic youth. “When the pope talks, political leaders listen, and that’s what’s needed in Brazil, where our protests are about their corruption,” Ms. Morais said.

    Reaching beyond Brazil, Francis told Argentines who came here for the conference that “the church must be taken into the streets” in a struggle against complacency. “Stir things up, cause confounding, but do not diminish faith in Jesus Christ,” he said in Spanish.

    In each of Francis’ public appearances, he has been accorded a rock-star reception. On an uncommonly cold and rainy morning, hundreds of residents lined the narrow, muddy sidewalks of the Varginha favela to glimpse the first pope from the Americas, who obliged by stopping often to touch and bless people.

    Many onlookers had made their own shirts to commemorate the event, with a photo of Francis. Others draped themselves in Brazilian flags and waved banners bearing his image. Residents darted in and out of their homes, checking their televisions and radios to learn the pope’s whereabouts and calling the information out to their neighbors standing on wet rooftops to get a better view.

    Sônia Curato, 48, a manicurist, said the pope’s visit was different from that of other leaders. “Politicians come all the time. They make promises and leave,” she said. “He is a very simple person. You can tell that. He has charisma. He speaks to the people, doesn’t like going around in an armored car.”

Pope Francis’ optimism could be seen in Varginha, where he told people to

    RIO DE JANEIRO — Pope Francis on Thursday delivered some of his most politically provocative remarks since his papacy began this year, hopping from his popemobile to walk through a slum in this city before urging young people to fight against corruption, a leading grievance behind the huge street protests that shook dozens of Brazilian cities in June.

    “Do not grow accustomed to evil, but defeat it,” Francis said at the favela, or slum, of Varginha, in an area that has commonly been known here as the Gaza Strip for its gun battles and drug trafficking in the past. “Do not lose trust, do not allow your hope to be extinguished,” he added, acknowledging that it was common for some to “grow disillusioned with news of corruption.”

    By singling out corruption in a folksy visit to a Brazilian favela on his first trip abroad as pope, Francis, an Argentine-born Jesuit, emphasized his aim to refocus the Roman Catholic Church on the neglected margins of society, especially in Brazil and other parts of Latin America where the popularity of evangelical churches has surged among the poor in recent decades.

    In a nod to the Brazilian political authorities who have warmly welcomed him, Francis also praised the government’s antipoverty programs and did not specifically mention the anti-establishment protests in Brazil. But he did critique Rio de Janeiro’s so-called pacification project in the city’s slums, in which security forces assert control over lawless areas.

    “No amount of pacification will be able to last, nor will harmony and happiness be attained in a society that ignores, pushes to the margins or excludes a part of itself,” the pope said in Varginha, a slum that has recently been subjected to pacification. In a remark that could resonate in Latin America and in the United States, which is also grappling with the widening disparity between the haves and the have-nots, Francis said that a society “impoverishes itself” by perpetuating such inequality.

    Care for the poor and marginalized is an integral part of Catholic teaching, and a concern of many popes and encyclicals, including those by Francis’ predecessor, Benedict XVI. But Francis has made it a hallmark of his young papacy, telling journalists in Rome days after his election, “How I would like a church that is poor and for the poor.” He has demonstrated that ideal by living relatively humbly as pope: in a communal guesthouse rather than the opulent papal apartment, wearing a pectoral cross of iron instead of gold, flying commercial. He recently told priests that they should not drive fancy cars, and he has traveled around Rio this week in a compact Fiat.

    “He is helping to wake people up,” said Natalia Morais, 21, a nursing student from Minas Gerais State who traveled to Rio to see the pope as part of World Youth Day, a conference attended by hundreds of thousands of Catholic youth. “When the pope talks, political leaders listen, and that’s what’s needed in Brazil, where our protests are about their corruption,” Ms. Morais said.

    Reaching beyond Brazil, Francis told Argentines who came here for the conference that “the church must be taken into the streets” in a struggle against complacency. “Stir things up, cause confounding, but do not diminish faith in Jesus Christ,” he said in Spanish.

    In each of Francis’ public appearances, he has been accorded a rock-star reception. On an uncommonly cold and rainy morning, hundreds of residents lined the narrow, muddy sidewalks of the Varginha favela to glimpse the first pope from the Americas, who obliged by stopping often to touch and bless people.

    Many onlookers had made their own shirts to commemorate the event, with a photo of Francis. Others draped themselves in Brazilian flags and waved banners bearing his image. Residents darted in and out of their homes, checking their televisions and radios to learn the pope’s whereabouts and calling the information out to their neighbors standing on wet rooftops to get a better view.

    Sônia Curato, 48, a manicurist, said the pope’s visit was different from that of other leaders. “Politicians come all the time. They make promises and leave,” she said. “He is a very simple person. You can tell that. He has charisma. He speaks to the people, doesn’t like going around in an armored car.”

    RIO DE JANEIRO — Pope Francis on Thursday delivered some of his most politically provocative remarks since his papacy began this year, hopping from his popemobile to walk through a slum in this city before urging young people to fight against corruption, a leading grievance behind the huge street protests that shook dozens of Brazilian cities in June.

    “Do not grow accustomed to evil, but defeat it,” Francis said at the favela, or slum, of Varginha, in an area that has commonly been known here as the Gaza Strip for its gun battles and drug trafficking in the past. “Do not lose trust, do not allow your hope to be extinguished,” he added, acknowledging that it was common for some to “grow disillusioned with news of corruption.”

    By singling out corruption in a folksy visit to a Brazilian favela on his first trip abroad as pope, Francis, an Argentine-born Jesuit, emphasized his aim to refocus the Roman Catholic Church on the neglected margins of society, especially in Brazil and other parts of Latin America where the popularity of evangelical churches has surged among the poor in recent decades.

    In a nod to the Brazilian political authorities who have warmly welcomed him, Francis also praised the government’s antipoverty programs and did not specifically mention the anti-establishment protests in Brazil. But he did critique Rio de Janeiro’s so-called pacification project in the city’s slums, in which security forces assert control over lawless areas.

    “No amount of pacification will be able to last, nor will harmony and happiness be attained in a society that ignores, pushes to the margins or excludes a part of itself,” the pope said in Varginha, a slum that has recently been subjected to pacification. In a remark that could resonate in Latin America and in the United States, which is also grappling with the widening disparity between the haves and the have-nots, Francis said that a society “impoverishes itself” by perpetuating such inequality.

    Care for the poor and marginalized is an integral part of Catholic teaching, and a concern of many popes and encyclicals, including those by Francis’ predecessor, Benedict XVI. But Francis has made it a hallmark of his young papacy, telling journalists in Rome days after his election, “How I would like a church that is poor and for the poor.” He has demonstrated that ideal by living relatively humbly as pope: in a communal guesthouse rather than the opulent papal apartment, wearing a pectoral cross of iron instead of gold, flying commercial. He recently told priests that they should not drive fancy cars, and he has traveled around Rio this week in a compact Fiat.

    “He is helping to wake people up,” said Natalia Morais, 21, a nursing student from Minas Gerais State who traveled to Rio to see the pope as part of World Youth Day, a conference attended by hundreds of thousands of Catholic youth. “When the pope talks, political leaders listen, and that’s what’s needed in Brazil, where our protests are about their corruption,” Ms. Morais said.

    Reaching beyond Brazil, Francis told Argentines who came here for the conference that “the church must be taken into the streets” in a struggle against complacency. “Stir things up, cause confounding, but do not diminish faith in Jesus Christ,” he said in Spanish.

    In each of Francis’ public appearances, he has been accorded a rock-star reception. On an uncommonly cold and rainy morning, hundreds of residents lined the narrow, muddy sidewalks of the Varginha favela to glimpse the first pope from the Americas, who obliged by stopping often to touch and bless people.

    Many onlookers had made their own shirts to commemorate the event, with a photo of Francis. Others draped themselves in Brazilian flags and waved banners bearing his image. Residents darted in and out of their homes, checking their televisions and radios to learn the pope’s whereabouts and calling the information out to their neighbors standing on wet rooftops to get a better view.

    Sônia Curato, 48, a manicurist, said the pope’s visit was different from that of other leaders. “Politicians come all the time. They make promises and leave,” she said. “He is a very simple person. You can tell that. He has charisma. He speaks to the people, doesn’t like going around in an armored car.”

When he met with Argentines, the Pope mentioned that besides stirring things up, they should

    RIO DE JANEIRO — Pope Francis on Thursday delivered some of his most politically provocative remarks since his papacy began this year, hopping from his popemobile to walk through a slum in this city before urging young people to fight against corruption, a leading grievance behind the huge street protests that shook dozens of Brazilian cities in June.

    “Do not grow accustomed to evil, but defeat it,” Francis said at the favela, or slum, of Varginha, in an area that has commonly been known here as the Gaza Strip for its gun battles and drug trafficking in the past. “Do not lose trust, do not allow your hope to be extinguished,” he added, acknowledging that it was common for some to “grow disillusioned with news of corruption.”

    By singling out corruption in a folksy visit to a Brazilian favela on his first trip abroad as pope, Francis, an Argentine-born Jesuit, emphasized his aim to refocus the Roman Catholic Church on the neglected margins of society, especially in Brazil and other parts of Latin America where the popularity of evangelical churches has surged among the poor in recent decades.

    In a nod to the Brazilian political authorities who have warmly welcomed him, Francis also praised the government’s antipoverty programs and did not specifically mention the anti-establishment protests in Brazil. But he did critique Rio de Janeiro’s so-called pacification project in the city’s slums, in which security forces assert control over lawless areas.

    “No amount of pacification will be able to last, nor will harmony and happiness be attained in a society that ignores, pushes to the margins or excludes a part of itself,” the pope said in Varginha, a slum that has recently been subjected to pacification. In a remark that could resonate in Latin America and in the United States, which is also grappling with the widening disparity between the haves and the have-nots, Francis said that a society “impoverishes itself” by perpetuating such inequality.

    Care for the poor and marginalized is an integral part of Catholic teaching, and a concern of many popes and encyclicals, including those by Francis’ predecessor, Benedict XVI. But Francis has made it a hallmark of his young papacy, telling journalists in Rome days after his election, “How I would like a church that is poor and for the poor.” He has demonstrated that ideal by living relatively humbly as pope: in a communal guesthouse rather than the opulent papal apartment, wearing a pectoral cross of iron instead of gold, flying commercial. He recently told priests that they should not drive fancy cars, and he has traveled around Rio this week in a compact Fiat.

    “He is helping to wake people up,” said Natalia Morais, 21, a nursing student from Minas Gerais State who traveled to Rio to see the pope as part of World Youth Day, a conference attended by hundreds of thousands of Catholic youth. “When the pope talks, political leaders listen, and that’s what’s needed in Brazil, where our protests are about their corruption,” Ms. Morais said.

    Reaching beyond Brazil, Francis told Argentines who came here for the conference that “the church must be taken into the streets” in a struggle against complacency. “Stir things up, cause confounding, but do not diminish faith in Jesus Christ,” he said in Spanish.

    In each of Francis’ public appearances, he has been accorded a rock-star reception. On an uncommonly cold and rainy morning, hundreds of residents lined the narrow, muddy sidewalks of the Varginha favela to glimpse the first pope from the Americas, who obliged by stopping often to touch and bless people.

    Many onlookers had made their own shirts to commemorate the event, with a photo of Francis. Others draped themselves in Brazilian flags and waved banners bearing his image. Residents darted in and out of their homes, checking their televisions and radios to learn the pope’s whereabouts and calling the information out to their neighbors standing on wet rooftops to get a better view.

    Sônia Curato, 48, a manicurist, said the pope’s visit was different from that of other leaders. “Politicians come all the time. They make promises and leave,” she said. “He is a very simple person. You can tell that. He has charisma. He speaks to the people, doesn’t like going around in an armored car.”

Pope Francis criticized the pacification project because he believes

    RIO DE JANEIRO — Pope Francis on Thursday delivered some of his most politically provocative remarks since his papacy began this year, hopping from his popemobile to walk through a slum in this city before urging young people to fight against corruption, a leading grievance behind the huge street protests that shook dozens of Brazilian cities in June.

    “Do not grow accustomed to evil, but defeat it,” Francis said at the favela, or slum, of Varginha, in an area that has commonly been known here as the Gaza Strip for its gun battles and drug trafficking in the past. “Do not lose trust, do not allow your hope to be extinguished,” he added, acknowledging that it was common for some to “grow disillusioned with news of corruption.”

    By singling out corruption in a folksy visit to a Brazilian favela on his first trip abroad as pope, Francis, an Argentine-born Jesuit, emphasized his aim to refocus the Roman Catholic Church on the neglected margins of society, especially in Brazil and other parts of Latin America where the popularity of evangelical churches has surged among the poor in recent decades.

    In a nod to the Brazilian political authorities who have warmly welcomed him, Francis also praised the government’s antipoverty programs and did not specifically mention the anti-establishment protests in Brazil. But he did critique Rio de Janeiro’s so-called pacification project in the city’s slums, in which security forces assert control over lawless areas.

    “No amount of pacification will be able to last, nor will harmony and happiness be attained in a society that ignores, pushes to the margins or excludes a part of itself,” the pope said in Varginha, a slum that has recently been subjected to pacification. In a remark that could resonate in Latin America and in the United States, which is also grappling with the widening disparity between the haves and the have-nots, Francis said that a society “impoverishes itself” by perpetuating such inequality.

    Care for the poor and marginalized is an integral part of Catholic teaching, and a concern of many popes and encyclicals, including those by Francis’ predecessor, Benedict XVI. But Francis has made it a hallmark of his young papacy, telling journalists in Rome days after his election, “How I would like a church that is poor and for the poor.” He has demonstrated that ideal by living relatively humbly as pope: in a communal guesthouse rather than the opulent papal apartment, wearing a pectoral cross of iron instead of gold, flying commercial. He recently told priests that they should not drive fancy cars, and he has traveled around Rio this week in a compact Fiat.

    “He is helping to wake people up,” said Natalia Morais, 21, a nursing student from Minas Gerais State who traveled to Rio to see the pope as part of World Youth Day, a conference attended by hundreds of thousands of Catholic youth. “When the pope talks, political leaders listen, and that’s what’s needed in Brazil, where our protests are about their corruption,” Ms. Morais said.

    Reaching beyond Brazil, Francis told Argentines who came here for the conference that “the church must be taken into the streets” in a struggle against complacency. “Stir things up, cause confounding, but do not diminish faith in Jesus Christ,” he said in Spanish.

    In each of Francis’ public appearances, he has been accorded a rock-star reception. On an uncommonly cold and rainy morning, hundreds of residents lined the narrow, muddy sidewalks of the Varginha favela to glimpse the first pope from the Americas, who obliged by stopping often to touch and bless people.

    Many onlookers had made their own shirts to commemorate the event, with a photo of Francis. Others draped themselves in Brazilian flags and waved banners bearing his image. Residents darted in and out of their homes, checking their televisions and radios to learn the pope’s whereabouts and calling the information out to their neighbors standing on wet rooftops to get a better view.

    Sônia Curato, 48, a manicurist, said the pope’s visit was different from that of other leaders. “Politicians come all the time. They make promises and leave,” she said. “He is a very simple person. You can tell that. He has charisma. He speaks to the people, doesn’t like going around in an armored car.”

One of the ways through which Pope Francis has shown he is not like his predecessors is the fact that he defends that

As plantas da caatinga possuem algumas características particulares, como folhas transformadas em espinhos, cutículas altamente impermeáveis, caules suculentos, raízes profundas etc. Essa descrição se refere ao que definimos como

Na atualidade, os suplementos vitamínicos fazem, cada vez mais, parte da rotina de pessoas em todo o mundo, pois possuem a função de suprir a deficiência de nutrientes necessários para o bom funcionamento do corpo, quando não há tempo suficiente para dedicação a uma alimentação equilibrada. Sobre as vitaminas, é correto afirmar-se que

A zona pilífera da raiz apresenta células epidérmicas com projeções citoplasmáticas denominadas de pelos absorventes, cuja principal função é absorver água e sais minerais indispensáveis à sobrevivência das plantas. A absorção de água pelas raízes dos vegetais acontece normalmente quando

Considere os eventos abaixo, que podem ocorrer na mitose ou na meiose.

I. Emparelhamento dos cromossomos homólogos duplicados.

II. Alinhamento dos cromossomos no plano equatorial da célula.

III. Permutação de segmentos entre cromossomos homólogos.

IV. Divisão dos centrômeros, resultando na separação das cromátides irmãs.

No processo de multiplicação celular para reparação de tecidos, os eventos relacionados à distribuição equitativa do material genético entre as células resultantes estão contidos somente em

“O raciocínio indutivo se desenvolve a partir do que já é conhecido, mas requer uma etapa adicional para descrever o que ainda é desconhecido.” (Jacob Bronowski – A escalada do homem). Foi o raciocínio indutivo que permitiu ao cientista Mendeleiev

Um material sólido, de cor acinzentada, quando posto em contato com a chama do bico de Bunsen, deu origem a um pó branco que, misturado à água com algumas gotas de uma substância halocrômica (indicador), revelou uma coloração vermelha. Quando este produto reagiu em condições estequiométricas adequadas com um ácido, a coloração vermelha desapareceu. Considerando essas informações, assinale a única afirmação verdadeira.