Clubbing is a painless enlargement and flattening of the tips of fingers or toes caused by chronic hypoxia. Hypoxia is deficiency in the amount of oxygen reaching the tissues.
Blood has three main functions: transport, protection and regulation. Blood transports the following substances: Gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and rest of the body. Nutrients from the digestive tract and storage sites to the rest of the body.
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Diffusion.
diffusion acts passively, and the oxygen and carbon dioxide move to the area of lower concentration
Answer: no
Explanation water and carbon dioxide are produced as wastes. the cells in both plants and animals perform respiration.... during photosynthesis , a palnt uses light, water and carbon dioxide to make its own food. oxygen is given off during photosynthesis as a waste product
