Answer:
A public service is a service intended to serve all members of a community. Public services include services provided by a government to people living within its jurisdiction, either directly through public sector agencies or by financing provision of services by private businesses or voluntary organizations.
C
Given that the World population changed little between this time, we can gather than the birth and death rates were similar, since they seem to cancel each other out from 1200-1400. To clarify, think of this. If you add something to a total (think births to population), but take away the same number (think deaths from population) you end up with the same total as before. Because of this, A is the correct answer choice (The birth rate and death rate were about equal).
Between 1931 and 1940 a ton of soil blew out of the central and southern great. It was a period of severe dust storms that greatly damaged the ecology and agriculture during the 1930s.
1. The cells contain the same genes and express the same genes.
2. Multipotent (can differentiate to a limited number of cell fates/into a closely related family of cells).
3. Multipotent, totipotent, pluripotent (though I'm not 100% sure on this one).
4. Provide a source of cells for the body to replace certain types of cells that die.
