Explanation:
The interior of the lungs is made up of spongy tissues containing many capillaries and around 30 million tiny sacs known as alveoli.
The alveoli are cup-shaped structures found at the end of the terminal bronchioles and surrounded by capillaries.
Oranelles carry out specific functions within the cell
Adaptive radiation
occur(s) when a species gives rise to many new species after colonizing a region with diverse habitats.
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