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embryology × 136development × 36
human-biology × 22
cell-biology × 16
reproduction × 16
genetics × 11
homework × 11
evolution × 8
dna × 7
pregnancy × 7
human-anatomy × 6
anatomy × 6
neuroscience × 5
physiology × 5
molecular-biology × 4
zoology × 4
molecular-genetics × 4
terminology × 4
human-physiology × 4
neuroanatomy × 4
gene-expression × 3
endocrinology × 3
biochemistry × 2
cardiology × 2
mammals × 2
