Kuhn could have illustrated his point with almost anything: for example, the science of plant leaves and ... suggests that the cell differentiation leading to veins within leaves gets initiated ...

Human bodies defend themselves using a diverse population of immune cells that circulate from one organ to another, ...

Vein arrangement, density ... which are outgrowths produced by living plant cells surrounding a vessel to seal it off after wounding or pathogen invasion (Figure 8). Abiotic factors can be ...

they hypothesized that the plant's vein network could serve as a scaffold for growing human heart tissue. The process began by stripping spinach leaves off their cells, and then turning them ...

Vascular tissue in the midrib and veins Branches of the xylem ... products of photosynthesis to other parts of the plant. Air spaces between cells within the leaf For the diffusion of gases.