Genetic Phenomena+ 23
Ocular Physiological Phenomena+ 14
Cell Physiological Phenomena+ 13
Immune System Phenomena+ 12
Physical Phenomena+ 12
Physiological Phenomena+ 12
Mathematical Concepts+ 11
Metabolic Phenomena+ 10
Microbiological Phenomena+ 9
Biological Phenomena+ 8
Chemical Phenomena+ 8
Plant Physiological Phenomena+ 6
Circulatory and Respiratory Physiological Phenomena+ 3
Digestive System and Oral Physiological Phenomena+ 2
Integumentary System Physiological Phenomena+ 2
Musculoskeletal and Neural Physiological Phenomena+ 2
Reproductive and Urinary Physiological Phenomena+ 2