O esquema mostrado a seguir, ilustra a operação de um robô industrial que tem como objetivo, fazer desenhos na “Folha”. Para tanto, são usados dois sistemas de coordenadas, “Referência” e “Objeto”, sendo os eixos X, Y e Z do “Objeto” paralelos aos seus respectivos eixos do sistema “Referência”. A ferramenta do robô industrial é uma “caneta”, sistema “Objeto”, que está posicionada em (100; 200; 500) em relação ao sistema “Referência” e com a respectiva especificação da orientação da ponta da caneta “para cima”. Assinale a especificação da orientação da ferramenta “caneta” quando a ponta da mesma estiver “para baixo”, perpendicular ao plano da “Folha”.

Os principais agentes desinfetantes utilizados no tratamento de água são:

O uso de reguladores de crescimento tenta ajustar o balanço entre o crescimento vegetativo e reprodutivo das espécies que necessitam dessa estratégia como é o caso do algodoeiro. Entre as principais vantagens do uso do regulador no algodoeiro estão redução da altura das plantas, do comprimento dos ramos reprodutivos e vegetativos, maior retenção de frutos, uniformidade de abertura, entre outras. Os reguladores de crescimento como cloreto de mepiquat atuam na inibição do hormônio vegetal responsável pelo crescimento e elongação celular que reflete em maior comprimento dos internódios. Assinale qual hormônio vegetal inibido com o uso desse regulador:

The OCENs (BRAZIL, 2006, p.8) were a document proposed to retake the discussion of Parâmetros Curriculares Nacionais do Ensino Médio to deepen understanding about points that deserved to be clarified and to identify and to develop indicatives that could offer didactic-pedagogical alternatives for the organization of pedagogical work, in order to meet needs and expectations of schools and of teachers in structuring the curriculum for high school. For achieving this goal some themes were added to OCENs. Choose the alternative that brings them:

Growth Cocktail Helps Restore Spinal Connections in the Most Severe Injuries

Repairing damaged nerves in a rodent study marks a crucial first step toward bringing back lost
movement

By Emily Willingham on August 30, 2018

In 1995 the late actor Christopher Reeve, who most famously played Superman, became paralyzed from the neck down after a horseback-riding accident. The impact from the fall left him with a complete spinal cord injury at the neck, preventing his brain from communicating with anything below it. Cases like Reeve’s are generally considered intractable injuries, absent any way to bridge the gap to restore disrupted communication lines.

When Reeve died in 2004 a means of reconnection had yet to be built. Now, 14 years later, researchers have coaxed nerve cells to span the divide of a complete spinal cord injury. Their findings, described August 29 in Nature, are specific to only one kind of nerve cell and much work remains before a means of reconnection reaches patients, but the results make an impression. [...]

Their first effort failed. They tried dampening the activity of a gene called PTEN because the gambit had worked well with a few other types of nonspinal neurons. To their surprise, that strategy did not succeed with the propriospinal cells. They then turned to a set of chemicals that promote nerve cell growth and trigger production of a well-known structural protein called laminin, widely used in tissue engineering as a scaffold. Some of these growth promoters are active in embryonic development, and adults usually do not make them. Previous efforts to coax axons across an injury gap using so-called growth factors alone had come up empty—failures blamed on other inhibitory chemicals getting in the way.

(Disponível em: https://www.scientificamerican.com/article/growth-cocktail-helps-restore-spinal-connections-in-the-most-severe-injuries/, acessado em 02/09/18).

Com a leitura do texto, é correto afirmar que:

Considere as afirmações abaixo sobre o pH de uma lagoa facultativa. NÃO está correto o que se afirma em: