Figure 6From: Evolution of dispersal and life history strategies – Tetrahymena ciliatesA) Typical digital picture of Tetrahymena thermophila cells used to extract quantitative variables. B) Cells (D2 strain) in normal growth condition (with nutrients) showing large size and a largely rounded shape. C) Cells (20 strain) eight hours after nutrient removal, showing reduced size and (middle cell) the typical elongated shape of the fast-swimming dispersal morph described by Nelsen and Debault [69].Back to article page