Habituation
Hair follicle
Half-lfe
Haploid
Haversian
Heartwood
Helper T-cell
Hemoglobin
Herbaceous
Herbivore
Heredity
Hermaphrodite
Heterogamy
Heterotroph
Heterozygous
Histamine
Holdfast cell
Hollow dorsal nerve cord
Homeostasis
Hominid Hominoid
Homologou structure Homozygous
Hormone
Hybrid Hybridization
Hydrolysis
Hydrostatic skeleton
Hypha
Hypocotyl
Hypothalmus
Hypothesis