Blue and black recycling symbol with triangle and arrows

Diagram illustrating the three primary categories of RNA: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).
A schematic diagram of an intestine showing the large intestine and small intestine in black with red lines indicating the flow or connection between them.


Graph with black background and blue axes, without data points or labels.

Red radial lines spreading from a central point on a black background.


Blue neon outline of a smiley face with X's for eyes and a curved smile.