<span>Water makes up about 60 percent of our body weight.
(</span><span>50% for an elderly person.)</span>
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.
The correct answer would be d