Physiology

Physiology is the study of the life functions of plants and animals, both in the whole organism and at the cellular or molecular level, under normal and abnormal conditions. Physiologists often specialize in functions such as growth, reproduction, photosynthesis, respiration, or movement, or in the physiology of a certain area or system of the organism.

Biological systems

Main Article: Biological system

Name	Description
Auditory system
Circulatory system
Digestive system
Endocrine system
Immune system
Integumentary system
Limbic system
Lymphatic system
Muscular system
Nervous system
Olfactory system
Reproductive system
Respiratory system
Sensory system
Skeletal system
Urinary system
Visual system

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Processes

Main Article: Biological process

• Aging
• Digestion
• Embryogenesis
• Metabolism
• Metamorphosis
• Muscle contraction
• Parasitism
• Prenatal development
• Reproduction
• Symbiosis
• Trophism

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