 | Mouse small intestine. Two goblet cells excreting mucous are visible between epithelial cells lining the surface of the small intestine. Hair like structures on epithelial cells are called microvilli. |
 | Bacteriophage isolated from soil. Phages are abundant in nature and survival depends on the infective interaction with the bacterial host also present in the soil microbial community. |
 | Mouse skeletal muscle. Longitudinal section showing a dark z-line to which thin actin filaments are bound. The unit between two z-lines is called a sarcomere. |
 | Cross-section through the gut of Daphnia, a small planktonic crustacean used to study the uptake of nanoparticles. Visible are the microvilli on the surface of epithelial cells lining the gut. By Piper MacDonald (Engineering ’23). |
