Answer:
This observation would be quantitative.
Explanation:
This is quantitive because it says how many of what there is.
The continued presence of vestigial structures suggests that these structures do not have a great impact on fitness, like in the whale, because even with these structures, the whale has been able to survive and reproduce.
Answer:
Chains of amino acids make proteins. They can fold into many different complex shapes.
In the lungs, carbon dioxide passes into the air from the blood.
The kings are part of the respiratory system
