☤ MD ☞ ☆☆☆ Colored scanning electron micrograph (SEM) of squamous cell carcinoma (cancer) cells from a human mouth. The many blebs (lumps) and microvilli (small projections) on the cells' surfaces are typical of cancer cells.
Coloured scanning electron micrograph (SEM) of a sperm (blue) attempting to penetrate a human egg (orange). Actually, it takes a great number to weaken the outside of the egg enough for one to fertilize it.
infinity-imagined: Scanning electron micrographs of diatoms, microscopic algae that form the base of the food chain and produce of Earth’s oxygen. The beautiful base of the pyramid of biology, feeding our air, land and life.