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

Sobre as esponjas, analise as afirmações abaixo.

I. Sua pequena capacidade regenerativa revela a elevada interdependência e a diferenciação de suas células.

II. Não possuem sistema digestório. A digestão é exclusivamente intracelular.

III. Todas possuem espículas silicosas distribuídas pelo corpo, que são urticantes e importantes para a defesa das espécies.

IV. Seus coanócitos criam uma corrente que faz a água circular no seu interior e sair pelo ósculo.

Está correto apenas o que se afirma em

Considere as seguintes características de um ser vivo:

I. Tem a capacidade de evoluir ao longo do tempo.

II. Possui organização celular.

III. Apresenta material genético.

Os vírus possuem apenas a(s) característica(s)

Sementes são óvulos fertilizados e desenvolvidos que, embora apresentem diferenças morfológicas entre si, têm como função primordial a perpetuação e a multiplicação das espécies.

Atente para as seguintes afirmações a respeito das sementes.

I. A presença de substâncias nutritivas na semente é um fator que favorece a propagação dos vegetais.

II. A semente é uma estrutura vegetal importante, mas no caso das ervas daninhas, a plântula resultante da germinação estabelece uma relação de competição imediata e nociva com a planta-mãe.

III. As sementes são elementos essenciais para uma maior dispersão das espécies.

IV. Somente as sementes produzidas em frutos secos realizam a proteção mecânica do embrião.

Está correto o que se afirma apenas em

Analise as proposições a seguir e assinale com V as verdadeiras e com F as falsas.

( ) À medida que os ambientes são mais amplamente estudados, espécies novas são catalogadas. No entanto, muitas delas são extintas antes mesmo de serem descobertas.

( ) A biodiversidade brasileira é uma das maiores do mundo e vem aumentando ano a ano devido à fragmentação de ambientes naturais.

( ) As angiospermas, plantas que produzem sementes, mas não frutos, são o grupo mais diverso e rico dentre todas as plantas.

( ) De acordo o Ministério do Meio Ambiente, dentre os biomas brasileiros com maior número de espécies ameaçadas de extinção estão: a Mata Atlântica, o Cerrado e a Caatinga, nessa ordem.

Está correta, de cima para baixo, a seguinte sequência: 

Analise as seguintes afirmações a respeito das substâncias que compõem os seres vivos:

I. Vitaminas são as melhores fontes de energia para os seres vivos, mas somente são encontradas nos alimentos saudáveis.

II. Além de sua função energética, os carboidratos também atuam como elementos estruturais e de proteção nos seres vivos.

III. Alguns hormônios sexuais dependem da existência de gordura para um funcionamento ideal.

IV. Seres vivos são constituídos exclusivamente por substâncias orgânicas como proteínas, lipídios, carboidratos, vitaminas e ácidos nucleicos.

Está correto o que se afirma apenas em

TEXT

      Hundreds of studies have assessed leadership styles, mainly by having employees report on how their managers typically behave. Researchers have also collected information on how effective managers are. After large numbers of such studies became available, reviewers aggregated them quantitatively to discover what kinds of leadership are effective.

      One conclusion that has emerged based on the research of the past 30 years is that a hybrid style known as transformational leadership is highly effective in most contemporary organizational contexts.

      A transformational leader acts as an inspirational role model, motivates others to go beyond the confines of their job descriptions, encourages creativity and innovation, fosters good human relationships, and develops the skills of followers. This type of leadership is effective because it fosters strong interpersonal bonds based on a leader’s charisma and consideration of others. These bonds enable leaders to promote high-quality performance by encouraging workers rather than threatening them, thus motivating them to exceed basic expectations.

      By bringing out the best in others, transformational leaders enhance the performance of groups and organizations.

      Transformational leadership is androgynous because it incorporates culturally masculine and feminine behaviors. This androgynous mixing of the masculine and feminine means that skill in this contemporary way of leading does not necessarily come naturally. It may require some effort and thought.

      Men often have to work on their social skills and women on being assertive enough to inspire others. It is nonetheless clear that both women and men can adapt to the demands of leadership in the transformational mode.

      One of the surprises of research on transformational leadership is that female managers are somewhat more transformational than male managers. In particular, they exceed men in their attention to human relationships. Also, in delivering incentives, women lean toward a more positive, reward-based approach and men toward a more negative and less effective, threat-based approach. In these respects, women appear to be better leaders than men, despite the double standard that can close women out of these roles.

      Why are women leaders more transformational when they are less likely to become leaders in the first place? One reason is that the double standard that slows women’s rise would work against mediocre women while allowing mediocre men to rise. As a consequence, the women who attain leadership roles really are better than the men on average.

      It is also true women generally avoid more domineering, “command and control” behavior because of the backlash they receive if they lead in this way. Men can often get away with autocratic behavior that is roundly disliked in women. Ironically, this backlash against domineering women may foster good leadership because the androgynous middle ground is more likely to bring success. Leaders gain less from ordering others about than from forming teams of smart, motivated collaborators who together figure out how to solve problems and get work done.

From: http://www.nytimes.com/ 2013/03/20  

TEXT

      Hundreds of studies have assessed leadership styles, mainly by having employees report on how their managers typically behave. Researchers have also collected information on how effective managers are. After large numbers of such studies became available, reviewers aggregated them quantitatively to discover what kinds of leadership are effective.

      One conclusion that has emerged based on the research of the past 30 years is that a hybrid style known as transformational leadership is highly effective in most contemporary organizational contexts.

      A transformational leader acts as an inspirational role model, motivates others to go beyond the confines of their job descriptions, encourages creativity and innovation, fosters good human relationships, and develops the skills of followers. This type of leadership is effective because it fosters strong interpersonal bonds based on a leader’s charisma and consideration of others. These bonds enable leaders to promote high-quality performance by encouraging workers rather than threatening them, thus motivating them to exceed basic expectations.

      By bringing out the best in others, transformational leaders enhance the performance of groups and organizations.

      Transformational leadership is androgynous because it incorporates culturally masculine and feminine behaviors. This androgynous mixing of the masculine and feminine means that skill in this contemporary way of leading does not necessarily come naturally. It may require some effort and thought.

      Men often have to work on their social skills and women on being assertive enough to inspire others. It is nonetheless clear that both women and men can adapt to the demands of leadership in the transformational mode.

      One of the surprises of research on transformational leadership is that female managers are somewhat more transformational than male managers. In particular, they exceed men in their attention to human relationships. Also, in delivering incentives, women lean toward a more positive, reward-based approach and men toward a more negative and less effective, threat-based approach. In these respects, women appear to be better leaders than men, despite the double standard that can close women out of these roles.

      Why are women leaders more transformational when they are less likely to become leaders in the first place? One reason is that the double standard that slows women’s rise would work against mediocre women while allowing mediocre men to rise. As a consequence, the women who attain leadership roles really are better than the men on average.

      It is also true women generally avoid more domineering, “command and control” behavior because of the backlash they receive if they lead in this way. Men can often get away with autocratic behavior that is roundly disliked in women. Ironically, this backlash against domineering women may foster good leadership because the androgynous middle ground is more likely to bring success. Leaders gain less from ordering others about than from forming teams of smart, motivated collaborators who together figure out how to solve problems and get work done.

From: http://www.nytimes.com/ 2013/03/20