Amino acids are the building blocks of which class of macromolecules?

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

This is collection of data made by comparing objects in standard units. in science, the units are metric.