1.   His approach has undoubtedly helped a lot of people to understand the complexities of biological evolution.

2.   Meanwhile the borderline case is important in understanding the complexity of primary signal systems.

3.   When we deal with constituents at our surgeries we have difficulty understanding the complexities.

4.   I make no claim to understand the complexities of the situation.

5.   Beyond the rhetoric, however, Raines believes that the candidates understand the complexity of the issues and the concerns of the biotech companies.

6.   Bill Bradley understands the complexity of the relationship of the people, their institutions and their economy.

7.   Biologists are just now beginning to understand the complexities of the Antarctic marine ecosystem.

8.   For with each passing of a species, we lose a unique and irreplaceable source of information for understanding the complexities of evolution.

9.   He understands the complexities of things.

10.   I would never presume to understand the complexities of the African-American experience.