True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.
Answer:
The answer is A, open systems!!
Explanation:
all systems on earth are open, except for the earth itself.
Earth layers crust
lithomsphere
asthenoshere
mantle
core
i think im not sure
It has been known that the greatest cause of muscle atrophy is lack of physical activity, that contributes to your muscle to waste away. This can possibly happen when you accidentally injured yourself or might have a certain disease that makes it for you difficult or to move your body as well.
Answer:
D is incorrect. Took the quiz. The most acceptable answer is either A or C