Explanation:
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Sun and water mostly for a cycle of photosynthesis
Flower color is red; AA. flower color is blue :))
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Answer:
Small pores called gastric pits
Explanation:
Small pores called gastric pits protect the lining of the stomach from acidic gastric juices.
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