Which is true regarding all x-linked disorders?
group of answer choices

they result in a longer lifespan

they are caused by mutations of the x chromosome

they are linked to an unknown chromosome

they are disorders that affect only women

they are caused by mutations of the X chromosome

Explanation:

The X chromosome contains many genes in addition to those that determine sex. Certain hereditary defects determine by recessive genes are linked to the X chromosome. The disorders are caused by mutations of the X chromosomes.

enzyme speed up the reactions

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.