Small differences between parents and offspring accumulate over time. this process

Small differences between parents and offspring accumulate over time. This process is called evolution.  

Explanation:

The process results with offspring that vary in character and other traits from ancestors of their bloodline. Evolution recognizes that over time, there will be a heritable change in species and population. Furthermore, it recognizes that all species have a common ancestor and that new species come from species that existed before.  

Heritability in evolution means there are some traits passed down between different generations which help species to reproduce and survive. The process of evolution is gradual and each new species develop unique traits while there is also branching from a common ancestor.

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor:

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )