To be able to answer this question, we need to compare the concentrations of the pollutants at the beginning of the monitoring (in 1980) with the concentrations at the end (in 2010).
Since we are not able to see the metrics for PM10 and PM2.5 in 1980, we can not take those in count for our analysis.
We then can analyze ozone, NO2, SO2, CO, and Lead; of which the one that has the most decrease is Lead as we can see in 2010.
Answer:
Histone acetylation or DNA methylation.
Explanation:
The epigenetics may be defined as the genetic phenomena that might cause mutation in the organism's genome. The DNA sequence of the organisms do not get changed in epigenetics.
This phenomena is limited whether the gene is herited from the mother ot the father. The phenomena like acetylation of histones increase the gene expression. The DNA methylation and histone deacetylation at specific residues reduces the gene expression.
Thus, the answer is histone acetylation or DNA methylation.
Answer:
stem cells
Explanation:
Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types.
Scientists use classification to help them decide. Classification is a way to organise living things. They are put in groups with similar features. An example is A finch looks quite different to a peacock, but they both have beaks, wings, and feathers.
Cellouse is ideal as a structural material since it’s fibers give strength and toughness to a plants leaves , roots and stems