Which material or shapes and colors were used to represent the phosphate-sugar backbone in your model of the dna molecule?

depending on who it is none. in most cases its a bachelor's.

hope that feel free to ask more questions

brainliest? ?

tell their parents and make sure she gets from a counselor or therapist. be supportive and be there for her. be a kind and good friend. spend time with her to make her feel like she's not alone. i'm not a professional but i really hope they stays strong.