4, 5 I think I’m not too sure
The answer is D. cold blooded.
Hope that helped you.
Recall that a period is horizontal, and a group is vertical.
So if cobalt is moving "down" a period, it would be most logical to say that it would be Ni, or nickel. It could also be Copper, Zinc, Gallium, and so on. Make sense?
c. Deoxyribose:RNA I think that's right I hope it is I'm sorry if I got it wrong
Answer:
D................... or B sorry
