I think B is the correct answer. Answer choices C & D are about dolphins, but they do not have anything related to negative effects surrounding human and dolphin interaction. A, on the other hand, may seem like a good choice, but then again, the answer is too vague.
Answer:
science is different from many other ways of learning because of the way it is done. Science relies on testing ideas with evidence gathered from the natural world.
Hope this helps
I think it'd be cell, tissue, organ, organ system, organism.
I hope this helps!
