Fossil evidence suggests that the early land flora included a basal dicot with simple leaves and primitive flowers.

Functional imaging revealed increased activity in the basal ganglia during the motor task.

During the neurological exam, the doctor noted abnormal activity in the basal ganglion that likely explained the tremor.

Cells in the basal layer constantly divide to replace the outer epidermal cells.

The dermatologist examined the biopsy and noted a single basal cell at the edge of the epidermis.

The basal tomentum of the mushroom formed a dense mat that clung to the forest floor.

We adjusted the pH of the basal medium before inoculating the culture to ensure optimal growth.

The entomologist examined the fly's basal bristles under a microscope to determine its species.

Microscopists often compare the staining patterns of basal layers across different biopsy samples.

The botanist carefully measured the basal tubercles on the seedpods to distinguish between species.