Primarily interested in biological matters, he was said to have been an atheist.

Most of the accounts of his philosophy suggest that he was interested in biological matters.

Carbon from the atmosphere is converted into biological matter by photosynthesis.

It may be a biological matter that I, as a robot, cannot fully understand.

If a couple can actually purchase an embryo, then parenthood becomes a legal, not a biological matter.

"I love to use my scientific information, even about biological matters, and make them easy to grasp."

Cellular components may also be called biological matter or biological material.

All known life is made of biological matter.

It is obvious that these biological matters really should not have caused him any further concern.

Biomass power is created when any biological matter is burned as fuel.