Final answer:
Elastin fibers are the rubberlike elastic meshworks in the extracellular matrix of some tissues, providing elasticity and resilience to tissues like the lungs and arteries.
_Elastin fibers_ are rubberlike elastic meshworks present in the extracellular matrix of some tissues
so the correct answer is A
Step-by-step explanation:
Rubberlike elastic meshworks present in the extracellular matrix of some tissues are known as elastin fibers. These fibers are a crucial component of connective tissue and are responsible for providing elasticity and resilience to various tissues including the lungs, walls of large arteries, bladder, and elastic ligaments. Elastin allows these tissues to stretch to multiple times their normal length and to return to their original shape upon release. This characteristic differentiates elastin fibers from other fibrous proteins, such as collagen, which provide tensile strength but are less stretchy than elastin.
the correct answer is A