I believe that the answer is D. lichens growing on cooled lava. Hope it helps.
An example for X-linked recessive disorder is (C). Color Blindness
The tissue is identified as skeletal muscle tissues. These muscle tissues are long, cylindrical, striated, multi nucleate cells and are arranged parallel to each other
Skeletal muscle is one of three major muscle types other than the cardiac and smooth muscle. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons.
Every organism is unique, even though the nucleotides making up DNA are all the same, because the structure is different in every organism. In other words, it's just the order in which nucleotides are placed that differs each organism from one another.
The answer is C) Ecological niches become available for organisms to evolve into by adaptive radiation
