Sentence examples for made it difficult to explain from inspiring English sources

This theory made it difficult to explain obvious empirical phenomena, such as monstrosity, the regeneration of lost parts, the resemblances of offspring to both parents, evidence for geographical variation, racial differences, or even the existence of hybrid forms such as the mule.

This made it difficult to explain, for example, the relationship between stimulation parameters and the therapeutic efficacy of DBS.

The substantial costs of developing and maintaining a larger brain have made it difficult to explain how large brains evolve in wild populations (Striedter 2005).

In the studies of a series of congenic strains, we found that the genetic effects behind the different level of total activity were lost in some of the congenic strains, which made it difficult to explain the genetic mechanism with a simple single-gene model.

D82 is not in contact with the large subunit (Fig. 5A), making it difficult to explain its effect on Rubisco catalysis.

Surface microstructure has shown its crucial role in the osteogenic response of calcium phosphate ceramics; however the presence of surface irregularities and random distribution of surface microstructure in traditional calcium phosphate ceramics make it difficult to explain how surface microstructure play its role in bone formation.

But this theory makes it difficult to explain certain basic facts, like you and me and countless galaxies.

• To the Editor: Peter Orszag says the complexities of the health care legislation make it difficult to explain and champion on a bumper sticker.