The relationship between the garter snakes and rough-skinned newts is their evolutionary race.
Grater snakes are resistant to the TTX (the toxin of the rough-skinned newts).
TTX-resistant snakes (resistance was formed via mutation) cause natural selection to favor ever-more poisonous newts (so they can survive), and the “new” newts drive selection for higher resistance in snakes.
Theoretically speaking, for a scientist to determain weather an unknown substance is set out to be an element, compound, solution, or heterogenous mixture is they would have to look at the substances properties, and appearance, using this will allow the scientist to outlook what it shall be.
Answer:
Xylem and phloem are the example of vascular tissue. Plant cell function together to form tissue.
