Sentence examples for extremely hard to identify from inspiring English sources

But sometimes, groups are extremely hard to identify.

However, because it is usually covert and informal with no records kept, it is extremely hard to identify and quantify".

Genes derived through intradomain eukaryote-to-eukaryote HGT were extremely hard to identify using high throughput phylogenomic analyses due to the limited number of taxa included in our local database.

Fossil Lepidoptera are extremely hard to identify and assign to particular taxa, because in adults the scale covering hides diagnostic characters, and fossils of soft-bodied larvae are rare [ 27].

It is extremely hard to distinguish adaptation signatures from phyla signatures when classifying archaea from bacteria.

The problem with the "doodle" breeds is that they have extremely varied looks, and are quite hard to identify if you have not seen one before.

T. spiralis is ovoviviparous, proper development requires intrauterine environment, and early blastomeres are extremely transparent [ 28] such that individual nuclei are hard to identify (E.S., unpublished observations).

Since we could not measure the methylation level directly from the reserve cells as they are extremely hard to be identified by microscopic examination, we cannot conclude that the LINE-1 methylation level decrease along the pathway of cell differentiation from the reserve cells of salivary duct unit to the other three cell types of MEC as proposed by Luna (2006).

It was hard to identify with them.

The trend is not hard to identify.

"It's hard to identify," he said.