Some of your dna may not code for any protein and has no known function in gene regulation; it is sometimes referred to as "junk" dna. how do nucleotide sequences of "junk dna" evolve?

They evolve through genetic drift.

Explanation: Junk DNA refers to noncoding sections of a genome. It consists of repeated segments scattered randomly throughout the genome generated through transposition or movement of sections of DNA to different positions in the genome.

Genetic drift is the change in the frequency of an allele in a population due to random sampling of organisms. This process is caused by spontaneous mutations and may cause the alleles to disappear completely and thereby reduce genetic variation. Many of these genetic alterations are in regions of "junk DNA"

looks like youre on your own with this one buddy

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.