Membrane proteins are not soluble in water solutions. to purify and crystallize membrane proteins, the proteins need to be dissolved in a solution containing mild detergents such as beta-octyl-glucopyranoside (see the structure below). explain how the detergents solubilize a membrane protein.

Detergents are knows as a class of molecules whose having unique properties to enable formation of hydrophobic-hydrophilic interaction among molecules in membrane. This unique property of detergents are used to dissolve membrane protein in water solution or in any solution.

Detergents are used to lyse cells, solubilize membrane lipids, and proteins, prevent protein crystalization, and nonspecific binding.

the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.