Answer:
C. Using cell phones while driving increases the likelihood of crashing.
Explanation:
As the statement mentions, science and technology have improved our livelihoods significantly. However, they have also brought numerous disadvantages.
The development of cell phones has made our lives easier. In contrast to [only] 50 years ago, <u>communication has become extremely easy and fast</u>. We are able to share our location with someone in less than a minute and to call a family member even if we are thousands of kilometers away.
However, people are now overusing these equipments, which has led to an increase of road accidents due to the lack of concentration while driving. For instance, according to statistics, in 2018 over 4,000 people died in car crashes because they were using cell phones while driving.
Therefore, <u>a negative effect of using cell phones would be C. using cell phones while driving increases the likelihood of crashing.</u>
A more recently developed cancer treatment is targeting telomerase activity. So the correct answer is b)stimulating telomerase activity.
A topic of ongoing attention is the use of telomeres and telomerase as potential targets for the treatment of cancer. The telomerase enzyme is in charge of maintaining the telomeres, which cover and safeguard the ends of chromosomes.
Cells lacking telomerase experience replicative senescence, a growth stop, after a certain number of cell divisions. Inactivating essential cell cycle checkpoints is the first step in the vast majority of malignancies to overcome replicative senescence. Once telomeres are critically short, telomerase expression is then increased.
It has been demonstrated that telomerase suppression causes telomere shortening in cancer cells. After enough cell divisions, this attrition might result in telomere uncapping and the activation of apoptosis.
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Answer;
= 58.8 joules
Solution and explanation;
Potential energy is given by the formula;
P.E = mgh where;
m is the mass in Kilograms
g is the gravitational acceleration (m/s²)
h is the height/distance in meters .
-Well the ball is held from the ground of a distance 1.5 meters, so, h = 1.5 m.
The mass of the ball is 4.0 kg, so m = 4.0 kg
Hence;
P.E = (4.0 kg) × (9.8 m/s²) × (1.5 m)
= 58.8 Joules
Explanation:
Instruments are designed and calibrated to take measurement of certain properties in the environment.
Most scientific instruments measures quantitatively, a wide range of physical and chemical properties.
- Thermometers are used in measuring temperature
- Hydrometer is used in measuring density
- Triple balance measures mass
- A weight scale records weight
- Hydrometer measures relative humidity
- Rulers are for measuring lengths
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Answer:
Pesticide resistance at a population level, as opposed to just a few individual pests within a species, can occur after repeated exposure to a single type of pesticide. ... When a resistant population occurs, the pesticide is no longer useful for managing that specific pest and other management options must be sought out.