Complex sentence: In order to support the cost of her studies, from 1910 she worked as an assistant at the Zoological Laboratory, becoming Kristine Bonnevie's most important collaborator for several years.
Split into simpler sentences: In order to support the cost of her studies, from 1910 she worked as an assistant at the Zoological Laboratory. Thanks to her work in the laboratory, she soon became Kristine Bonnevie's most important collaborator, a position she maintained for several years.