Adaptation raises some issues concerning how biologists use key terms such as function.

In some areas, marine biologists actually use mussels to track water quality.

Thus, biologists have since used skull differences to distinguish the two species.

Surprisingly, there is no generally accepted concept of population that biologists use.

Life sciences is flourishing with ontologies that biologists use to make sense of their experiments.

Many biologists use the figure of 100,000 human genes, a round number that implies the exact total could be somewhat more or less.

For decades, biologists have used electron microscopes to study the structure of cells and tissues.

The state found that marine biologists and aquaculture businesses could use the water for commercial purposes.

Some biologists use the term for evolution in already separated gene pools.

Evolutionary biologists hardly use the term primitive; many current textbooks do not mention it at all.