I'm not sure how many reasons you want, but here are 3 reasons.
1. Frogs can breathe on land and in water, whereas tadpoles can only breathe in water.
2. Frogs can go on land, and tadpoles cannot.
3. Tadpoles do not have limbs, frogs do.
A soliloquy<span> is an utterance or discourse by a person who is talking to himself or herself or is disregardful of or oblivious to any hearers present (often </span>used<span> as a device in </span>drama<span> to disclose a character's innermost thoughts). If there are others on stage, it is a protracted aside.</span>
Answer:
both of them are important.
I'm not the greatest at grammar, but I think the very first one is incorrect. It should just be a comma, then the second just a comma as well, but the last one is correct. (I have no idea, I am sorry if you get it wrong.)