Answer:
keratin, collagen, and elastin are some
Explanation:
Your answer is nitrogen fixing bacteria
let me know if you have any further questions
:)
A scientific model is a claim or a theory that helps explain how a phenomenon works or how it undergoes process. This models provides scientists an understanding of the object or a situation undergoes change and generate certain outcomes or effects.
Hey there!
Your answer is generator.
In a windmill, electrical voltage is produced in the generator.
Hope this helps you.
Have a great day (: