A picture showing the first and second developmental stages of collenchyma. In this stage cross and longitudinal section of a collenchyma cell are in its primary meristem condition, vintage line drawing or engraving illustration.
Guide month-by-month stages of pregnancy, divided into trimesters, showing fetal development and maternal body changes diagram schematic vector illustration. Medical science educational illustration
Developmental stages of fontanelle closure in infants, detailing sutures and bone structure of the skull diagram hand drawn schematic vector illustration. Medical science educational illustration
Life cycle of a jellyfish. The developmental stages of Medusozoa (egg, jellyfish, ephyra, strobila, polyp, planula, larva). Cnidaria. Vector diagram for scientific, and educational use