Explain the degree to which the shape of the population (or age-sex) graph for countries like Japan and regions such as Western Europe can be described as a pyramid. NOTE: This question CANNOT be answered in one sentence. **USE COMPLETE SENTENCES, & INCORPORATE THE QUESTION INTO YOUR ANSWER.** *

Population pyramid is called the distribution of inhabitants of a country based on their age; Given that in most cases, children and young people outnumber the elderly and the elderly, this distribution is plotted in the form of a pyramid, with a wide base and a narrow tip.

Now, there are certain cases in which this pyramid does not occur, but rather it is about graphs that tend to be rectangular. This is the case of the nations of Western Europe and Japan, where there is a very low birth rate, that is, where few children are born per couple; and where life expectancy is very high, causing the elderly to live longer and increase their percentage with respect to the total population of the country.

fertilization is the union of an egg and a sperm cell i believe.