How does Morph work?
You assume only the exterior physical appearance of whatever you Morph into; you gain none of that form’s special senses, movement abilities, et cetera, unless they are purely an effect of body shape. For instance, a super in the shape of a snake could slither; one in the shape of a bird could fly (if he were light enough). These are issues of shape. On the other hand, most special abilities — unusual senses, venom, et cetera — require special internal organs or adaptations that Morph cannot provide.