Human Skeletal System Diagram Style Embryonic Development Tree

Biological diagram infographic titled "Embryonic Development Evolutionary Tree" centered on a clean labeled diagram in an evolutionary tree layout showing major stages of human embryonic development branching upward in a clear chronological hierarchy, suitable for university undergraduate study. Render a central developmental tree with 5 labeled stages/components placed around the diagram, each connected by a thin leader line to the exact structure, each with a short label in English and a one-line function description in English. Use biologically accurate developmental anatomy and tasteful educational illustration. Labels to include: "Zygote" — "Single fertilized cell initiating development"; "Morula" — "Cleavage produces a compact ball of blastomeres"; "Blastocyst" — "Forms inner cell mass and trophoblast for implantation"; "Gastrula" — "Establishes ectoderm, mesoderm, and endoderm germ layers"; "Embryo" — "Undergoes organogenesis and body axis formation". Compose the tree with directional arrows indicating developmental progression from earliest to later stage, with subtle branching logic to fit the evolutionary-tree archetype while remaining scientifically accurate to embryonic chronology. Include small inset silhouettes or simplified cross-sectional forms for each stage with precise proportions and clean spacing. Visual style: modern textbook, vibrant educational primary palette with clear blues, reds, yellows, and greens, bright but disciplined academic color coding, crisp white background, sharp readable typography, balanced negative space, calm educational mood. Emphasize medical-textbook clarity, editorial scientific illustration, vector-clean lines, no photographic textures. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no graphic gore, no real patient photos, no watermarks No graphic medical gore, no real patient photographs, no surgical blood. For human anatomy, keep illustrations educationally tasteful. For animal anatomy, no cruelty imagery. Scientifically accurate labeling and proportions.