<span>The Mediastinum is the space in thoracic cavity between lungs</span>
Answer:
It's a structural adaption.
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Here are examples of the other adaptions:
Biochemical= Being immune to scorpion poison
Physiological= Hyoid bone used for roaring
Ecological= The sand grouse has wings that can hold water in its feathers, so it can take water back to the nest
The mother because it is an x-linked trait and the boy received a y from his father so therefore he could only get the x from his mother.