need help building a cladogram the characters are a sponge, jellyfish, flatworm, earthworm, snail, fruitfly, starfish and human....the things they

need help building a cladogram the characters are a sponge, jellyfish, flatworm, earthworm, snail, fruitfly, starfish and human....the things they may have in common are cells with flagella, symmetry, bilat symmetry, mesoderm, head develops first, anus develops first, segmented body, calcified shell, chitonous exoskeleton, water vascular system, vertebrae