The statement "<span>A strand of DNA serves as a model of the synthesis of RNA molecules" is totally a false statement. Each and every DNA strand only serves as a template or a model for the formation of other DNA molecule which was called as the process of replication.</span>
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]
I think it’s c but I’m not entirely sure
I’d say c makes sense , because b is talking about what’s happening not what WILL happen ,