Answer:
They help us determine if the system meets our needs.
Explanation:
Describe the seven major goals of the United States economy. They are: economic freedom, efficiency, equity, security, full employment, price stability, and growth.
To make the audience feel light-hearted and happy or to give the feeling of content
I believe the answer is: <span> have external ears
The seals on the other hand, only have small gap in the side of their heat but </span>lack an external ear<span> flap.
The function of the external ears are very similar to humans' , But sea lion's ears have different structures that help them to sustain pressure to protect them when they're diving.</span>