We exist as a part of the material world.

This food may contain carcinogens.

This culture liquid contains various types of bacteria.

Intestinal juice plays an important role in the digestion of food.

In plant cells, there is a large bag called a vacuole.

This electrolyte improves the performance of the battery.

You need a fixer to develop photos.

This liquid is very dangerous.

I always keep correction fluid in my pencil case.

The doctor performed a spinal tap to collect cerebrospinal fluid.