Resolver Preguntas

¿Cuál es el valor de la incógnita en la ecuación -5(x – 1) = -3(x + 3)?

Principales caracteristicas del Movimiento Rectilineo Uniforme

Un niño que juega a ser un bombero que combate un incendio en medio de la ciudad emite el sonido de agua que brota de una manguera mientras apunta con las manos juntas hacia el supuesto incendio.

¿En qué estadio de desarrollo de la teoría de Piaget se encuentra el niño?

¿Cuál de las siguientes expresiones corresponde a la multiplicación de 9 y un número k?

Identifique la característica de la cosmovisión filosófica prehispánica.

¿Cuál proposición es universal?

Elija la opción donde en negritas aparezca una finalidad determinante en el texto.

Científicos de varios países han analizado las variedades de tomate que se comercializan actualmente para descubrir por qué esta hortaliza ya no sabe como antes, y, sobre todo, para intentar recuperar su sabor que ha conquistado a casi toda la humanidad. Y es que el tomate es una hortaliza esencial en la dieta mediterránea -básica para la cocina española-, importante para la dieta humana, pero también una de las hortalizas más cultivadas y consumidas del mundo, tanto fresca como procesada. La investigación, que se publicó este jueves en Science, ha sido realizada por científicos de China, Estados Unidos e Israel y cuenta con la participación de investigadores del Instituto de Biología Molecular y Celular de Plantas de Valencia (España). El objetivo de los investigadores era descubrir por qué en los últimos años el sabor del tomate comercial moderno no tiene nada que ver con el de las variedades tradicionales, y para ello, han realizado un estudio exhaustivo de la química y la genética de su sabor, es decir, "de la suma de las interacciones entre el gusto y el olfato", explica Antonio Granell, coautor del estudio.

¿A qué función corresponde la gráfica?

Relaciona los planes con el contenido que les corresponde.
I. Plan de San Luis
II. Plan de Guadalupe
III. Plan de Tuxtepec
IV. Plan de Ayala
A. La vigencia de la constitución de 1857 y la no
reelección como principio fundamental.
B. La expropiación de la tierra al grito de Tierra y
Libertad.
C. Venustiano Carranza desconoce el gobierno
Victoriano Huerta.
D. Francisco I. Madero llama al levantamiento en
contra del gobierno de Porfirio Díaz.

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

On which of the following elements did Giacomini base the underlined comment in line 10?