Answer:
Vein
Explanation:
Veins are the ones that keep you alive because blood goes inside the vein
Although the options are not provided, the statement best describing the relationship is nucleic acids provide blueprints for the construction of proteins.
Messenger RNA molecules (mRNA) take instructions from DNA molecules and take the code out of the nucleus. There, ribosomes work with the RNA molecules to produce a chain of amino acids, which in turn links and folds in a specific manner to form a protein molecule.
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
