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Q1694631 Inglês
Why bats are not to blame, say scientists

    “Every now and then, Dr Mathieu Bourgarel seeks permission from the village elders to visit the sacred caves, bringing a gift to appease the spirits. Donning mask, overalls, and three layers of gloves, he descends into the darkness, climbing down rope ladders and squeezing through the narrow chambers of caves. People in this part of Zimbabwe call bats "winged dragons", "flying rats" or simply the "evil ones".
    Like elsewhere in the world, the flying mammals are much misunderstood. For this wildlife ecologist, they're beautiful and incredible creatures. "They are fascinating," he says. "People are frightened of something they don't know."
    "The local population frequently visits these bats' habitat, in order to collect guano to use as fertiliser for their crops. It is therefore essential to know the pathogens carried by the bats, because they could be transmitted to humans," says Dr Elizabeth Gori of the University of Zimbabwe.
    Bat experts have launched a campaign, Don't Blame Bats, to dispel unfounded fears and myths about bats, which are threatening conservation. They say bats are some of the most misunderstood and undervalued animals on the planet.
    Long the target of disdain, persecution and cultural prejudice, they have been blamed for a host of evils visited upon humans. And fears and myths about bats have only intensified in the time of Covid.
    The precise origin of the virus that has wreaked such havoc across the world has not been pinned down. But the vast majority of scientists agree that it crossed into humans from an animal species, most likely a bat. That doesn't mean bats are to blame; it's our increasing interference with these wild creatures that's at the root of the problem.”

(Adapted from: https://www.bbc.com/news/science-environment-54246473)
A palavra rope, em “climbing down rope ladders”, pode ser traduzida, em Português, por:
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Q1694246 Inglês

Newly discovered primate 'already facing extinction'


   The Popa langur, named after its home on Mount Popa, is critically endangered with numbers down to about 200 individuals.
   Langurs are a group of leaf-eating monkeys that are found across south east Asia.
   The newly described animal is known for its distinctive spectacle-like eye patches and greyish-coloured fur. It is at risk from habitat loss and hunting.
   Scientists have long suspected there might be a new species in Myanmar, based on DNA extracted from the droppings of wild monkeys, but evidence has been hard to find. 

(Adaptado de https://www.bbc.com/news/science-environment-54894681)

O trecho “evidence has been hard to find” significa que a evidência:
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Q1694243 Inglês

Newly discovered primate 'already facing extinction'


   The Popa langur, named after its home on Mount Popa, is critically endangered with numbers down to about 200 individuals.
   Langurs are a group of leaf-eating monkeys that are found across south east Asia.
   The newly described animal is known for its distinctive spectacle-like eye patches and greyish-coloured fur. It is at risk from habitat loss and hunting.
   Scientists have long suspected there might be a new species in Myanmar, based on DNA extracted from the droppings of wild monkeys, but evidence has been hard to find. 

(Adaptado de https://www.bbc.com/news/science-environment-54894681)

No texto, a frase “greyish-coloured fur” significa:
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Q1694104 Inglês

Read the text below to answer the question.


How octopuses ‘taste’ things by touching


   Octopus arms have minds of their own. Each of these eight supple yet powerful limbs can explore the seafloor in search of prey, snatching crabs from hiding spots without direction from the octopus’ brain. But how each arm can tell what it’s grasping has remained a mystery.

   Now, researchers have identified specialized cells not seen in other animals that allow octopuses to “taste” with their arms. Embedded in the suckers, these cells enable the arms to do double duty of touch and taste by detecting chemicals produced by many aquatic creatures. This may help an arm quickly distinguish food from rocks or poisonous prey, Harvard University molecular biologist Nicholas Bellono and his colleagues report online October 29 in Cell.

   The findings provide another clue about the unique evolutionary path octopuses have taken toward intelligence. Instead of being concentrated in the brain, two-thirds of the nerve cells in an octopus are distributed among the arms, allowing the flexible appendages to operate semiindependently.


(Adapted from: https://www.sciencenews.org/article/octopus-taste-touch-arm-suckers). 

The text states the cells embedded in the suckers enable the arms to do double duty of touch and taste, which means, in Portuguese, the animal have sensory skills like:
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Q1692264 Inglês
Drones could help create a quantum internet

    The quantum internet may be coming to you via drone.
    Scientists have now used drones to transmit particles of light, or photons, that share the quantum linkage called entanglement. The photons were sent to two locations a kilometer apart, researchers report in a study to appear.
    Entangled quantum particles can retain their interconnected properties even when separated by long distances. Such counterintuitive behavior can be harnessed to allow new types of communication.
    Quantum networks made with fiber-optic cables are already beginning to be used. And a quantum satellite can transmit photons across China. Drones could serve as another technology for such networks, with the advantages of being easily movable as well as relatively quick and cheap to deploy.
    In the future, fleets of drones could work together to send entangled particles to recipients in a variety of locations. 
No texto, “can be harnessed” significa:
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Respostas
101: B
102: B
103: D
104: C
105: A