"We know the biological connection between the symbionts and the parasites."

Ultimately, she decided to share custody of Jack with Brooke to have a biological connection.

An adoption detective is an individual who researches biological and genetic connections between individuals.

It was her decision to place the boy, who is his mother's only known blood relative, with a man to whom the child has no biological connection.

The situation is different from adoption, in which there is often no biological connection or physical resemblance between parents and child.

The biological connection between expression of these four transcripts and this therapy regimen remains to be further elucidated.

A special section examines the nation's age groups, the search for community and the emotional and biological connections that link a nation.

Some research points to a biological connection between allergies and mood changes.

Whether the word means anything to you or not, there is a biological connection.

Perhaps on Earth there is some sort of regard for biological connections.