Answer:
They had acquired resistance to many diseases
Answer:Image result for Immigrants into Spanish Texas who came from mixed Spanish and Native American heritage were called
The term was used as an ethnic/racial category for mixed-race castas that evolved during the Spanish Empire. Although broadly speaking, mestizo means someone of mixed European/indigenous heritage, the term did not have a fixed meaning in the colonial period.
Explanation:
He says it is "mere" to show that it is an estimation
