Resolver Preguntas

La pradera es una región natural que se caracteriza por su clima templado con lluvias_______, propicio para la agricultura de__________. 

Cuando en una solución se coloca papel tornasol y éste se vuelve azul, indica que la solución es:

Relaciona los tratados de paz que se firmaron al finalizar la
 Primera Guerra Mundial con los postulados que se
 establecieron en ellos.
 TRATADOS DE PAZ
 I. Tratado de Versalles
 II. Tratado de Saint Germain
 III. Tratado de Neuilly
 IV. Tratado de Sevres
 V. Tratado de Trianón
 a. Reducción del ejército alemán y eliminación de la fuerza
 aérea alemana.
 b. Desaparición del imperio Otomano-turco y firma del
 tratado Lausana.
 c. Prohibición de cualquier tipo de alianza con Alemania.
 d. Desarme y reducción territorial de Bulgaria.
 e. Reducción del territorio húngaro para beneficial a
 Rumania.

A partir de lo que se implica o se afirma en el texto siguiente, contesta la siguiente pregunta:

LOS RECUERDOS

El siglo se resiste a morir y en sus estertores descarga grandes manotazos sobre oriente y occidente. El hundimiento de las bolsas mundiales es uno de los espasmos con que el siglo pretende paralizar el tiempo, ahuyentar su fin, contener la evolución de las cosas. Mientras los ochenta fueron años de movidas que auguraban el germen de un espacio nuevo, los noventa se presentan y recurrentes. Sobre la superficie de estela historia patina y se rebobina a sí misma. El destino de este tiempo era cumplir con la ratificación del milenio, pero como víctima de un miedo resbaladizo, cada paso adelante ha sido a menudo un revival. Más que abrirse a lo desconocido, la historia de los noventa ha consistido, sobre todo, en un desfile del repertorio ya emitido. Se ha portado así este tramo como el capítulo último de muchos programas de televisión que justo el día de su despedida ofrecen los fragmentos más famosos de su producción. Desde el regreso de los nacionalismos al miedo al sexo; desde las guerras nucleares y raciales a las modas étnicas o el gusto por lo exótico; desde la utopía de la naturaleza o la fascinación por los robots hasta el retorno de la irracionalidad y las emociones, el miedo a la ciencia, el aumento a las desigualdades sociales, la presencia de nuevas plagas y hambrunas, el arte de la provocación, o los reviva en el teatro, el mobiliario, el maquillaje, el diseño de automóviles, los vestidos, las películas, la historia se copia a sí misma.

¿Qué condición debe existir para que se dé el equilibrio térmico?

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

Which of the following best describes the results of Jonathan Giacomini's research?

Seleccione el enunciado que está puntuado correctamente.

Para Darwin y Wallace el mecanismo evolutivo de mayor importancia es la

Países que integraron la Santa Alianza

Objetivo primordial de la Conspiración de Querétaro: