<span>The
enzyme name that catalyzes the reaction that converts fibrinogen to fibrin is <span>Thrombin. </span>The thrombin is
an enzyme - type peptidases. It is not part of the blood, but is <span>formed as part of the blood clotting process.</span></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]
Answer:
Warm air rises, creating a low pressure zone; cool air sinks, creating a high pressure zone.
Answer:
B) Autotrophes
Explanation:
Producers are <u>autotrophes</u> because, they make their own food. Hence, the option (b) is the correct answer.