Which of the following was a major effect of urbanization? living conditions improved in cities. the middle class grew in cities. cities became less segregated. the wealthy class grew in cities.

Urbanization is a population shift from rural to urban areas, "the gradual increase in the proportion of people living in urban areas", and the ways in which each society adapts to the change. It is predominantly the process by which towns and cities are formed and become larger as more people begin living and working in central areas.

The middle class grew in cities.

Explanation:

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the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.