Will give a brainlest -for rigth answer very easy look at the graph showing populations of different age ranges in mexico. which is a true statement? about half of mexico’s population is under the age of 20. most of the people of mexico are in their 30s and 40s. mexico has a growing population of elderly people.

Option A, About half of Mexico’s population is under the age of 20.

Explanation:

The demographic graph represented in this image depict an expansive population graph. An expansive population is one which has a large percentage of people in younger age groups. Here the base of the curve is wide and the top is narrow which means that the population has a high fertility rate with lower life expectancy.

Hence, option A is correct.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: