Ψ
 Medical Concepts
  Phenomena and Processes
 Biological Phenomena
 Biological Processes
 Adaptation, Biological
 Antibiosis
 Biogenesis
 Biological Evolution
 Colony Collapse
 Denitrification
 Extinction, Biological
 Host-Pathogen Interactions
 Regeneration
 Remission, Spontaneous
 Symbiosis
 Ecological and Environmental Phenomena
 Pigmentation
 Recovery of Function
 Species Specificity
 Tissue Survival

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