Ciencias Experimentales
De acuerdo con las recomendaciones de la IUPAC, ¿cuál es el nombre del compuesto que se muestra en la figura?
Exani II, Exani II -> Estructura de la Lengua
Señale el sujeto que se encuentran en las siguientes oraciones:
En el mes de octubre, los médicos del Hospital darán varias consultas.
Matemáticas Financieras
Una persona solicita un préstamo por $60,000 a un plazo de 12 meses. Si en el primer mes paga $8,000 de su deuda y en el doceavo $5,250, ¿cuál es la diferencia entre los pagos que efectúa mensualmente?
Redacción indirecta
Seleccione la opción que completa correctamente el sentido del enunciado.
La nueva camioneta tiene 250 caballos de fuerza; _______, una potencia única en el mercado.
Inglés
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 | |
How do bumblebees get rid of the parasites with the help of sunflower pollen?
ESPAÑOL SIMULADOR PARA LA UNAM
¿Qué forma del discurso predomina en el siguiente párrafo?
El vocablo Coyoacán es el resultado de una serie de
transformaciones que en su escritura y pronunciación sufrió la
palabra náhuatl Coyohuacán. La versión más aceptada es la que
lo define como: lugar de los que tienen o poseen coyotes,
basada en la explicación del topónimo original, que se compone
de tres voces nahuas: coyotl, coyote; hua, posesión y can,
lugar.
Esta última definición es apoyada por historiadores de la talla
de Cecilio Robelo, Manuel Rivera y Cambas y Antonio Peñafiel,
y aceptada por el cronista de Coyoacán Luis Everaert, quien
afirma en su texto "Coyoacán a Vuela-pluma" que: "siguiendo a
León-Portilla, se justificaría la intromisión del coyote en el
topónimo si se considera que, aparentemente, Coyoacán estaba
consagrada a una de las más importantes deidades del pontón
mexica, Tezcatlipoca (Espejo Humeante), cuyo nagual, era
precisamente, ese cánido depredador".
Derecho
A una empresa de cobranza le fue endosado un título de crédito para su cobro, el cual fue expedido en el extranjero para ser pagadero en nuestro país. No obstante, se ha visto imposibilitada de ejercer la acción porque la institución de crédito se encuentra en liquidación judicial.
¿A qué título de crédito se hace referencia en la situación?
Ciencias de la Salud
Relacione las regiones abdominales con su representación correspondiente.
| Región | Representación |
| 1. Epigastrio 2. Mesogastrio 3. Fosa iliaca 4. Hipogastrio 5. Hipocondrio |
 |
Exani