Answer:
The answer is Heterogeneous (B) I did the lesson and took the quiz today.
Explanation:
Noise does not affect the digital signal making it more reliable
Circulatory system
The tunica adventitia, the outermost layer, is the strongest of the three layers. It is composed of collagenous and elastic fibres. (Collagen is a connective-tissue protein.) The tunica adventitia provides a limiting barrier, protecting the vessel from overexpansion.
