I think the best explanation to this is that plants will do everything to get sunlight thats why they move in order to get more. I hope you are satisfied with my answer and feel free to ask for more if you have questions and clarifications
1.D
2.C
3.A
4.C
5.D
6.C
I am sure for all , so go for that !! If you got any problem, you can tell !!
Answer:B
Explanation:bc all of the other ones was equal together and the concentration gradient could not spread them
Adenine can't go with it because adenine can only go with thymine so it prevents it so it can go the right way