Zoology
Zoology: Study of animals
Ethology: Animal behavior study
Ecology: Organisms and environment interaction
Anatomy: Body structure study
Physiology: Body function study
Evolution: Species change over time
Adaptation: Trait aiding survival
Habitat: Natural living environment
Niche: Organism's role/environment
Territory: Defended living area
Ecosystem: Community and environment
Autotroph: Self-feeding organism
Heterotroph: Consumes others for energy
Herbivore: Plant-eating animal
Carnivore: Meat-eating animal
Omnivore: Eats plants and animals
Arboreal: Tree-dwelling
Aerial: In the air
Terrestrial: Land-dwelling
Aquatic: Water-dwelling
Marine: Ocean-dwelling
Subterranean: Underground-dwelling
Amphibious: Lives in water/land
Sessile: Immobile organism
Food Chain: Energy transfer sequence
Diurnal: Active during day
Crepuscular: Active at twilight
Nocturnal: Active at night
Asymmetrical: No symmetry
Bilateral Symmetry: Symmetry in halves
Radial Symmetry: Symmetry around center
Anterior: Front side
Posterior: Back side
Ventral: Belly side
Dorsal: Back side
Cross-Section: Cut view
Lateral View: Side view
Longitudinal View: Lengthwise view
Ectothermic: Cold-blooded
Endothermic: Warm-blooded
Hermaphroditic: Both reproductive organs
Exoskeleton: External skeleton
Invertebrate: No backbone
Vertebrate: Has backbone
Gestation Period: Pregnancy duration
Coelom: Body cavity
Pseudo Coelom: False body cavity
Ectoderm: Outer germ layer
Endoderm: Inner germ layer
Mesoderm: Middle germ layer
Hibernation: Winter inactivity
Aestivation: Summer inactivity
Parasitic: Lives off host
Free-Living: Independent organism
Budding: Asexual reproduction
Regeneration: Re-growth of parts
Sexual Reproduction: Combining genetic material
Ganglion: Nerve cell cluster
Endangered Species: Risk of extinction
Extinct: No longer existing