was it the revolution
Outdoor air pollution became a significant problem around the time of the Industrial Revolution due to the increase in industries and coal usage. Heavy industrial cities like London witnessed severe air pollution. However, smaller-scale air pollution has existed since prehistoric times.
Yes, you are correct in assuming that outdoor air pollution became a significant issue around the time of the Industrial Revolution. Beginning in the late 1700s, with the advent of new technology and the increased use of coal as a fuel source, industries began to emit larger amounts of smoke and soot, significantly degrading air quality. Cities fluid in manufacturing, like London, experienced severe air pollution issues, sometimes leading to events such as the 'Great Smog' of 1952. However, it is important to note that forms of air pollution have existed for centuries before the Industrial Revolution, such as dust and smoke from burning wood during the prehistoric era.
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B. because they can be used to transform bacteria
C. because it is difficult to insert new genes into them
D. because they cannot be cut with restriction enzymes
Answer:
Option (B).
Explanation:
Plamids are the extra chromsomal circular DNA present in the bacterias. Plasmid DNA can undergo replication independently to the chromsomal DNA.
Plamids can be used to transform bacteria and used in the molecular techniques. The foreign gene can easily be inserted into the plasmid DNA and used in the formation of recombinant protein.
Thus, the correct answer is option (B).
B) realism
C) postmodernism
D) modernism
Melanism related to the process of adaptation is called adaptive. Most commonly, dark individuals become fitter to survive and reproduce in their environment as they are better camouflaged. This makes some species less conspicuous to predators, while others, such as black panthers, use it as a foraging advantage during night hunting.Typically, adaptive melanism is heritable: A dominant gene, which is entirely or nearly entirely expressed in the phenotype, is responsible for the excessive amount of melanin.
Adaptive melanism has been shown to occur in a variety of animals, including mammals such as squirrels, many felines and canids, and coral snakes. Adaptive melanism can lead to the creation of morphs, the most notable example being the peppered moth, whose evolutionary history in the United Kingdom is offered as a classic instructional tool for teaching the principles of natural selection.
Answer:
C
Explanation:
B.) a characteristic that helps an organism find food
C.) a characteristic that evolves
D.) a characteristic that helps an organism avoid predators