Ở đối tượng nào, cấu trúc của tế bào không đi đôi với chức năng của chúng? Cho
ví dụ minh họa.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

i think the answer is a.keratin is the pigment responsible for skin color.