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  2. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.

  3. Arthropod - Wikipedia

    en.wikipedia.org/wiki/Arthropod

    Afrikaans; Alemannisch; አማርኛ; العربية; Aragonés; অসমীয়া; Asturianu; Avañe'ẽ; Azərbaycanca; تۆرکجه; বাংলা; 閩南語 ...

  4. Thorax - Wikipedia

    en.wikipedia.org/wiki/Thorax

    The thorax (pl.: thoraces or thoraxes) [1] or chest is a part of the anatomy of mammals and other tetrapod animals located between the neck and the abdomen. [2] [3]In insects, crustaceans, and the extinct trilobites, the thorax is one of the three main divisions of the body, each in turn composed of multiple segments.

  5. Anus - Wikipedia

    en.wikipedia.org/wiki/Anus

    In mammals, invertebrates and most fish, [1] [2] the anus (pl.: anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the exit end of the digestive tract (), i.e. the opposite end from the mouth.

  6. Bird anatomy - Wikipedia

    en.wikipedia.org/wiki/Bird_anatomy

    Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight.Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly.

  7. Evolution of insects - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_insects

    Evolution has produced astonishing variety of appendages in insects, such as these antennae.. The most recent understanding of the evolution of insects is based on studies of the following branches of science: molecular biology, insect morphology, paleontology, insect taxonomy, evolution, embryology, bioinformatics and scientific computing.

  8. Chest hair - Wikipedia

    en.wikipedia.org/wiki/Chest_hair

    Although vellus hair is already present in the area in childhood, chest hair is the terminal hair that develops as an effect of rising levels of androgens (primarily testosterone and its derivatives) due to puberty.

  9. Tri Hita Karana - Wikipedia

    en.wikipedia.org/wiki/Tri_Hita_Karana

    Tri Hita Karana is a traditional philosophy for life on the island of Bali, Indonesia.The literal translation is roughly the "three causes of well-being" or "three reasons for prosperity."