She took a doggy style position.

The blastoderm is formed in the early stages of embryonic development.

The blastula stage is an early stage where the fertilized egg divides and becomes a cell with many cells.

This factory is discharging a large amount of waste water into the river every day.

He won a bronze medal at the Olympics.

This fruit has rotted.

He exercises his back muscles every day.

We carry out collection and delivery in the area every day.

My job is to collect and deliver mail.