What is a "missing link" in the fossil record? a.) a fossil that shows a vestigial structure b.) a transitional fossil that shows how two species are connected c.) a fossil that is physically impossible and cannot exist d.) a fossil that contradicts the theory of evolution

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

i think it is dna, i'm not totally sure but i think it might be.