Resolver Preguntas

Identifique la característica de la identidad del mexicano a la que se hace referencia en el siguiente fragmento.

Los hijos de la Malinche

 La extrañeza que provoca nuestro hermetismo ha creado la leyenda del mexicano, ser insondable. Nuestro recelo provoca el ajeno. Si nuestra cortesía atrae, nuestra reserva hiela. Y las inesperadas violencias que nos desgarran, el esplendor convulso o solemne de nuestras fiestas, el culto a la muerte, acaban de desconcertar al extranjero.

Octavio Paz (2004). El laberinto de la soledad, México, FCE.

Con base en el siguiente sistema de vectores, ¿cuál es la magnitud del vector resultante?

Identifique una de las características de la discriminación.

¿Qué tipo de sustantivos son las palabras marcadas en negritas?

De acuerdo con un reporte de KGI Securities, especialista en la firma surcoreana, Samsung es el único proveedor de pantallas OLED de Apple, y le cobra más de 120 dólares por cada una. Estas pantallas ofrecen mayor brillo, nitidez de color y eficiencia energética.
Apple ya usaba pantallas OLED en sus iWatch, pero la inclusión en teléfonos (que usaban una pantalla LCD que conseguían a la mitad del precio), disparó los precios de los dispositivos, según los especialistas.

¿Cuál órgano del aparato respiratorio se señala en el esquema?

¿Cuál es el ejemplo que corresponde a una tesis?

Partiendo que la luz tiene un comportamiento dual ¿Qué propiedades se cumplen y pueden ser estudiadas?

Choose the correct answer for each question according to the information in the text. Each line is numbered to help you identify them quickly.

Sunflowers Make Bees Poop—a Lot. Here's Why That's Good
Paragraph	Text
[1]	Bumblebees and other pollinators face many threats, including pesticide exposure,
[2]	climate change, habitat loss due to agriculture and development, and pathogens
[3]	that ravage multiple species. But a recent finding may help lighten their load.
[4]	Previous studies have shown sunflower pollen can work like a medicine for
[5]	bumblebees afflicted by a parasite called Crithidia bombi, a single-celled organism
[6]	that takes up residence in the bee's gut [and harms their health]. But scientists couldn't
[7]	explain how sunflower pollen vanquished C. bombi—did it boost the bees' immune
[8]	function, or perhaps poison the parasite directly?
[9]	New research, published in the Journal of Insect Physiology, shows the answer is
[10]	deceptively simple. "Sunflower pollen makes bumblebees poo a whole lot," says lead
[11]	author Jonathan Giacomini, which flushes the parasite out.
[12]	Plant products like nectar and pollen are a treasure trove of potential insect medicines
[13]	that scientists are just beginning to understand, he adds. "There are natural things out
[14]	there that bees are interacting with that can be beneficial for them," Giacomini says.
[15]	And by making changes to the landscape, scientists hope we can help give bees a
[16]	fighting chance.
[17]	Plant power
[18]	If you happen upon a fuzzy, buzzing, flying creature in eastern North America, there's
[19]	a strong chance it's a common eastern bumblebee (Bombus impatiens). Yellow and
[20]	black striped with a rump covered in soft hairs, they're social insects that live in
[21]	colonies and love a good crevice—they build their homes in birdhouses, woodpiles,
[22]	abandoned burrows, and dense grasses.
[23]	[They] are important pollinators, both in the wild and in agriculture, where they're raised
[24]	and used to pollinate crops including tomatoes and pumpkins. Like other pollinators,
[25]	bumblebees face many threats, and C. bombi isn't even the biggest bumblebee
[26]	bugaboo. On its own, the parasite doesn't have much of an effect on a bumblebee's
[27]	health. But when food is scarce, C. bombi can shorten a bee's lifespan and even
[28]	reduce the number of young queens a colony can produce.
[29]	Lynn Adler is an evolutionary ecologist at the University of Massachusetts Amherst
[30]	who studies interactions between plants and insects. For years, she and longtime
[31]	collaborator Rebecca Irwin at North Carolina State University suspected pollinators
[32]	might be getting dosed by flowers since plants often invest chemically active
[33]	compounds into their nectar and pollen to help their genetic payload arrive at
[34]	its destination.
[35]	"Many plant defensive compounds can be medicinal at certain doses," Adler says. After
[36]	all, "most of our human medicines come from plants."
[37]	Giacomini discovered the effect of sunflower pollen as an undergraduate working in
[38]	Adler's lab in 2018. From [these] very first tests, sunflower pollen dramatically reduced
[39]	C. bombi parasite load in common eastern bumblebees, often clearing infection
[40]	completely. "We've been shocked at how consistent and effective sunflower pollen
[41]	has been," Adler says.
Elizabeth Anne Brown, National Geographic

In line 23, the word they refers to...

Elige la función de la lengua que predomina en el siguiente ejemplo. Luisa, ¿puedes limpiar la mesa y lavar los trastes por favor?

¿Que léxico corresponde al siguiente texto?
En el humo de tabaco hay unos 4000 productos químicos conocidos, de los cuales se sabe que, como mínimo, 250 son nocivos, y más de 50 cancerígenos para el ser humano. El humo de tabaco en espacios cerrados es inhalado por todos; por lo tanto, tanto fumadores como no fumadores quedan expuestos a sus efectos nocivos.
Unos 700 millones de niños, o sea, casi la mitad de los niños del mundo, respiran aire contaminado por humo de tabaco. Más de un 40% de los niños tienen al menos un progenitor fumador. En 2004 los niños fueron víctimas del 31% de las 600 000 muertes prematuras atribuibles al humo ajeno.
El tabaquismo pasivo es causa de graves enfermedades cardiovasculares y respiratorias, entre ellas la cardiopatía coronaria y el cáncer de pulmón, en el adulto; de síndrome de muerte súbita en el lactante, y de bajo peso al nacer en el feto.