Alpha helices and Beta pleated sheets make up the secondary structure of protein.
Ice is less densw than water (a)
The substances which are less dense than water float on water
Answer:
Backbones
Spines
Eggs
Beaks
Explanation:
I listed a few since you didn't provide the answer list. Hopefully these are on your answer list.
B, (layer C is the youngest layer) :)
Answer:
B-Close the ring in the bearing or the ring in the bearing.
Explanation:
hope it's help