Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs. ... There are 20 different types of amino acids that can be combined to make a protein. Both do most the work.
Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs. ... There are 20 different types of amino acids that can be combined to make a protein. Both do most the work.
A testable question is B. If a plant is turned upside down, which way will the roots grow? The other options are incorrect because you cannot create some kind of experiment to prove them right or wrong. Hope that helped you.