TEXTO:
When Sudan, the last northern white rhino bull, died
in March 2018, that left alive only two females of
the subspecies once common in Central and East
Africa.Both are descendants of Sudan and live in Kenya,
[5] and were considered infertile. But now, new hope is
emerging that extinction of the species can still be
prevented. Researchers have successfully created living
embryos in the laboratory from frozen sperm of the
northern white rhinoceros and egg cells from the southern
[10] white rhinoceros. It’s the most closely related
subspecies, with more than 20,000 southern rhinos living
in the wild.
Although such hybrid embryos are not pure northern
white rhinoceros, the researchers are optimistic. They
[15] plan to take egg cells from the still living northern
rhinoceros females in autumn of this year, and to fertilize
them with stored sperm from the same species.They
then intend to implant the oocytes into fertile southern
rhinoceros females in early 2019. This method is also
[20] used in human reproductive medicine.
Even if healthy rhinoceros calves can be
produced, whether the northern white rhino can be saved
in the long term remains unclear. As the sperm comes
from a few rhinoceros bulls, limited genetic diversity could
[25] endanger the health of a newly bred northern white rhino
population. Due to the smaller gene pool, such inbreeding
typically leads to higher rates of recessive disorders,
translating into higher death rates and poorer overall
health.
[30] Still, the research unit is hoping that stem cell
technology can create more eggs and sperm from the
skin cells of 12 northern whites, increasing the supply
and genetic variety. If the scientists pull it off, they’ll
both rescue a seemingly doomed animal and provide a
[35] blueprint for protecting other animals teetering on the
edge of oblivion.
WHEN SUDAN...Disponível em: https://www.dw.com/en/researcherscreate-hybrid-northern-white-rhino-embryos/a-44527410. Acesso em: 1 nov. 2018. Adaptado.
The central idea of this text is summarized in:
TEXTO:
What might your office or apartment have in
common with a NASA spaceship? Unfortunately the
answer may be poor air quality. Indoor air pollutants have
been ranked among the top five environmental risks to
[5] public health. Living and working in places rife with air
contaminants and lacking decent ventilation can cause
“Sick Building Syndrome”, which can cause headaches,
dizziness, nausea, and eye, ear, and nose
irritations.Given that people spend more than 90 percent
[10] of their time indoors, air quality matters. Furnishings,
upholstery, synthetic building materials, and cleaning
products in homes and offices can emit a variety of toxic
compounds, like formaldehyde. Indoor air pollution can
also be caused by pollen, bacteria, and molds, as
[15] outdoor air contaminants like car exhaust finds its way
into buildings. All of these are made worse in small
or poorly-ventilated spaces.
Lucky for us, NASA scientists have been working
to understand this problem and find solutions.The good
[20] news is that there’s an easy and affordable way to
combat the presence of the yucky stuff we may be
breathing in, and it comes right from the natural world:
Use houseplants to clean the air. Plants purify theair,
making them part of what NASA calls “nature’s life
[25] support system,” although plants in bloom may be
contributing their own compounds to the air.
So, how do houseplants clean the air? Plants
absorb some of the particulates from the air at the same
time that they take in carbon dioxide, which is then
[30] processed into oxygen through photosynthesis. But
that’s not all—microorganisms associated with the
plants are present in the potting soil, and these microbes
are also responsible for much of the cleaning effect.
Beyond air quality, plants just make people feel
[35] better. For example, hospital patients with plants in their
rooms were more positive and had lower blood pressure
and stress levels. Similarly, indoor plants may make
people smarter by allowing them to stay alert and
reducing mental fatigue.
JANOWIAK, Maria. Disponível em: greatist.com/connect/houseplantsthat-clean-air. Acesso em: 1 nov. 2018. Adaptado.
Fill in the parentheses with T (True) or F (False).
Some causes of “Sick Building Syndrome” mentioned in the text include
( ) inadequate ventilation.
( ) the non-use of cleaning products.
( ) excessive use of artificial light.
( ) emission of toxic compounds by indoor or outdoor sources.
The correct sequence, from top to bottom, is
TEXTO:
What might your office or apartment have in
common with a NASA spaceship? Unfortunately the
answer may be poor air quality. Indoor air pollutants have
been ranked among the top five environmental risks to
[5] public health. Living and working in places rife with air
contaminants and lacking decent ventilation can cause
“Sick Building Syndrome”, which can cause headaches,
dizziness, nausea, and eye, ear, and nose
irritations.Given that people spend more than 90 percent
[10] of their time indoors, air quality matters. Furnishings,
upholstery, synthetic building materials, and cleaning
products in homes and offices can emit a variety of toxic
compounds, like formaldehyde. Indoor air pollution can
also be caused by pollen, bacteria, and molds, as
[15] outdoor air contaminants like car exhaust finds its way
into buildings. All of these are made worse in small
or poorly-ventilated spaces.
Lucky for us, NASA scientists have been working
to understand this problem and find solutions.The good
[20] news is that there’s an easy and affordable way to
combat the presence of the yucky stuff we may be
breathing in, and it comes right from the natural world:
Use houseplants to clean the air. Plants purify theair,
making them part of what NASA calls “nature’s life
[25] support system,” although plants in bloom may be
contributing their own compounds to the air.
So, how do houseplants clean the air? Plants
absorb some of the particulates from the air at the same
time that they take in carbon dioxide, which is then
[30] processed into oxygen through photosynthesis. But
that’s not all—microorganisms associated with the
plants are present in the potting soil, and these microbes
are also responsible for much of the cleaning effect.
Beyond air quality, plants just make people feel
[35] better. For example, hospital patients with plants in their
rooms were more positive and had lower blood pressure
and stress levels. Similarly, indoor plants may make
people smarter by allowing them to stay alert and
reducing mental fatigue.
JANOWIAK, Maria. Disponível em: greatist.com/connect/houseplantsthat-clean-air. Acesso em: 1 nov. 2018. Adaptado.
Considering the “Sick Building Syndrome”, a variety of adverse health effects have been associated with
TEXTO:
What might your office or apartment have in
common with a NASA spaceship? Unfortunately the
answer may be poor air quality. Indoor air pollutants have
been ranked among the top five environmental risks to
[5] public health. Living and working in places rife with air
contaminants and lacking decent ventilation can cause
“Sick Building Syndrome”, which can cause headaches,
dizziness, nausea, and eye, ear, and nose
irritations.Given that people spend more than 90 percent
[10] of their time indoors, air quality matters. Furnishings,
upholstery, synthetic building materials, and cleaning
products in homes and offices can emit a variety of toxic
compounds, like formaldehyde. Indoor air pollution can
also be caused by pollen, bacteria, and molds, as
[15] outdoor air contaminants like car exhaust finds its way
into buildings. All of these are made worse in small
or poorly-ventilated spaces.
Lucky for us, NASA scientists have been working
to understand this problem and find solutions.The good
[20] news is that there’s an easy and affordable way to
combat the presence of the yucky stuff we may be
breathing in, and it comes right from the natural world:
Use houseplants to clean the air. Plants purify theair,
making them part of what NASA calls “nature’s life
[25] support system,” although plants in bloom may be
contributing their own compounds to the air.
So, how do houseplants clean the air? Plants
absorb some of the particulates from the air at the same
time that they take in carbon dioxide, which is then
[30] processed into oxygen through photosynthesis. But
that’s not all—microorganisms associated with the
plants are present in the potting soil, and these microbes
are also responsible for much of the cleaning effect.
Beyond air quality, plants just make people feel
[35] better. For example, hospital patients with plants in their
rooms were more positive and had lower blood pressure
and stress levels. Similarly, indoor plants may make
people smarter by allowing them to stay alert and
reducing mental fatigue.
JANOWIAK, Maria. Disponível em: greatist.com/connect/houseplantsthat-clean-air. Acesso em: 1 nov. 2018. Adaptado.
Among the symptoms associated with “Sick Building Syndrome”, the only one not mentioned in the text is
TEXTO:
What might your office or apartment have in
common with a NASA spaceship? Unfortunately the
answer may be poor air quality. Indoor air pollutants have
been ranked among the top five environmental risks to
[5] public health. Living and working in places rife with air
contaminants and lacking decent ventilation can cause
“Sick Building Syndrome”, which can cause headaches,
dizziness, nausea, and eye, ear, and nose
irritations.Given that people spend more than 90 percent
[10] of their time indoors, air quality matters. Furnishings,
upholstery, synthetic building materials, and cleaning
products in homes and offices can emit a variety of toxic
compounds, like formaldehyde. Indoor air pollution can
also be caused by pollen, bacteria, and molds, as
[15] outdoor air contaminants like car exhaust finds its way
into buildings. All of these are made worse in small
or poorly-ventilated spaces.
Lucky for us, NASA scientists have been working
to understand this problem and find solutions.The good
[20] news is that there’s an easy and affordable way to
combat the presence of the yucky stuff we may be
breathing in, and it comes right from the natural world:
Use houseplants to clean the air. Plants purify theair,
making them part of what NASA calls “nature’s life
[25] support system,” although plants in bloom may be
contributing their own compounds to the air.
So, how do houseplants clean the air? Plants
absorb some of the particulates from the air at the same
time that they take in carbon dioxide, which is then
[30] processed into oxygen through photosynthesis. But
that’s not all—microorganisms associated with the
plants are present in the potting soil, and these microbes
are also responsible for much of the cleaning effect.
Beyond air quality, plants just make people feel
[35] better. For example, hospital patients with plants in their
rooms were more positive and had lower blood pressure
and stress levels. Similarly, indoor plants may make
people smarter by allowing them to stay alert and
reducing mental fatigue.
JANOWIAK, Maria. Disponível em: greatist.com/connect/houseplantsthat-clean-air. Acesso em: 1 nov. 2018. Adaptado.
According to NASA scientists, adding potted plants to a room has shown to
TEXTO:
What might your office or apartment have in
common with a NASA spaceship? Unfortunately the
answer may be poor air quality. Indoor air pollutants have
been ranked among the top five environmental risks to
[5] public health. Living and working in places rife with air
contaminants and lacking decent ventilation can cause
“Sick Building Syndrome”, which can cause headaches,
dizziness, nausea, and eye, ear, and nose
irritations.Given that people spend more than 90 percent
[10] of their time indoors, air quality matters. Furnishings,
upholstery, synthetic building materials, and cleaning
products in homes and offices can emit a variety of toxic
compounds, like formaldehyde. Indoor air pollution can
also be caused by pollen, bacteria, and molds, as
[15] outdoor air contaminants like car exhaust finds its way
into buildings. All of these are made worse in small
or poorly-ventilated spaces.
Lucky for us, NASA scientists have been working
to understand this problem and find solutions.The good
[20] news is that there’s an easy and affordable way to
combat the presence of the yucky stuff we may be
breathing in, and it comes right from the natural world:
Use houseplants to clean the air. Plants purify theair,
making them part of what NASA calls “nature’s life
[25] support system,” although plants in bloom may be
contributing their own compounds to the air.
So, how do houseplants clean the air? Plants
absorb some of the particulates from the air at the same
time that they take in carbon dioxide, which is then
[30] processed into oxygen through photosynthesis. But
that’s not all—microorganisms associated with the
plants are present in the potting soil, and these microbes
are also responsible for much of the cleaning effect.
Beyond air quality, plants just make people feel
[35] better. For example, hospital patients with plants in their
rooms were more positive and had lower blood pressure
and stress levels. Similarly, indoor plants may make
people smarter by allowing them to stay alert and
reducing mental fatigue.
JANOWIAK, Maria. Disponível em: greatist.com/connect/houseplantsthat-clean-air. Acesso em: 1 nov. 2018. Adaptado.
Microbes existing in the potting soil of the plants