The external ear structure is called the Pinna.
The Pinna helps to channel sound waves into the ear.
Many animals have the ability to move their pinna towards the direction of sound.
I have attached an image of a dog's ear to show you the external structure called the Pinna.
I hope this helps! I'm happy to answer any other questions you might have :)
[Image sourced from: https://www.msdvetmanual.com/dog-owners/ear-disorders-of-dogs/ear-structure-and-function-in-dogs]
Answer:
I think it is it's amino acid sequence
Explanation:
Hope this helps!
•The type of fruit or stuff that grows on it like pine cones.
•the color of the leaves (before fall and winter).
•The type of bark on the tree.