This relationship is between a spider crab and algae. Spider crabs live in shallow areas of the ocean floor, and greenish-brown algae lives on the crabs' backs. This algae on the crabs back makes the crabs blend in with their environment, and unnoticeable to predators. The algae gets a good place to live and the crab gets camouflage. What form of symbiosis is described this relationship? * 1 point