How do scientists mainly use Molecular Biology to provide evidence of evolutionary relationships between two groups of organisms? By comparing the base sequences in their genes

By comparing the phospholipids in their cell membranes

By comparing the ratios of elements in their biomolecules

By comparing the structures of their carbohydrate molecules

Me the formula cacl2 represents the compound

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.

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science