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Diagnostics and Pathology Reports Maximal Oxygen Consumption (VO2 Max) Multicellular Organisms: Organisation Major Nutrients Biochemistry Vocabulary Musculoskeletal - Clinical Cellular and Sexual Reproduction History of Psychology Cell and Tissue Introduction to Pharmacology Respiration in Organisms Aseptic Technique & Sterile Comp Review CNA Introduction Skeleton and Muscles MicrorganismsOther quiz:
Life Processes › ViewIt is the site of gaseous exchange in human lungs.
A. villi
B. alveoli
C. trachea
D. larynx
Diversity › View
A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
(a) move downwards
(b) move upwards
(c) remain at the same position
(d) move sideways