In the lungs. The carbon dioxide/oxygen diffuses through the capillaries surrounding the alveoli (grape like structures) in the lungs
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Answer:
The different use of the tongue in amphibians and mammalian.
Explanation:
The amphibians use their tongue to catch their prey by providing outward and extending inwards for election and digestion process. The mammals ( humans) use their tongue to taste and roll food into bolus with then goes through the oesophagus down to the stomach.
5 ..................................................... Explanation: