<span>A narrow slab of minerals that is different from the surrounding rock is known as a Vein.
Hope this helps :)</span>
Answer: by shared characteristics
Explanation:
Such as appearance and movement.
Dunkleosteus is an extinct genus of arthrodire placoderm fish that existed during the Late Dev Devonian period, about 360-380 million years ago.
It really is between C.or D. I say it is D. because you need the <span>experimental subjects in the best condition possible to get the best results.</span>
