You don't want to base a defense for a defendable bit of our diversity upon its putative biological nature.

As mentioned before, the biological nature of man is, for all practical purposes, not subject to change.

From a natural science standpoint, the units which matter are those common to Homo sapiens by virtue of our biological nature.

The people of this type are completely under the influence of the biological nature.

The particles that are investigated can be of biological or chemical nature.

"Whatever has entered the system is of a biological nature, much like perfume or the odor of cooking food."

The war against drugs is in reality a war against the biological nature of man.

They are not "insects", but their biological nature is "alien".

The paper endeavored to explore the biological nature and physical composition of human intelligence.

"Was it a case of literary nurture over biological nature?"