Answer:
The correct answer is option d.
Explanation:
The non-genotoxic carcinogens lead to cancer not by amending the genotype, that is, they do not cause mutations straightforwardly. In spite, they result in cancers due to secondary mechanisms that are not associated with direct damage of the gene. They influence either the growth factors or the hormones related to growth.
They are;
Birth rate
Death rate
Immigration
Emigration
Birth rate is the number of babies born at a particular time. Increase birth rate leads to increase in population. While a decrease leads to a decrease in population.
Death rate is the number of deaths at a particular time. Increased death leads to population decrease and decreased death leads to population increase
Immigration is the movement of people into a place. Increased immigration leads to high population
Emigration is the movement of people out of a place. Increased emigration leads to low population.
Hope I helped. Good luck
B - FRONTS occur when two AIR MASSES meet!
The correct answer is (b.) an increase in the width of the stem. The increase in the width of the stem could be referred to as the secondary growth of the stem. Whereas the primary growth is the upward growth of the plant.
