"It might have been a biological problem," I suggested.

I'm sure you'll appreciate the biological problems raised by all this.

Q. Do you consider drug addiction to be, in part, a biological problem?

Even in biological problems, some events (for example, heart attack or other organ failure) may have the same ambiguity.

Increased surface area can also lead to biological problems.

In 1953 Croizat gave up all official academic positions to work full time on biological problems.

Functional incontinence can also occur in certain circumstances where no biological or medical problem is present.

But, as a whole, they show very little concern for the biological problem of which all these other problems are only manifestations.

To us the most serious biological problem is a restricted host range.

Most of the biological problems seen in schools are blamed on water damage.