In this scenario, the algae are "Helped." The algae benefit by having a good place to live on the crab's back, which provides them with access to sunlight and nutrients while the crab gets camouflage to evade predators. Thus, the relationship is mutualistic, with one organism (the algae) being helped.
Spider crab and algae: Spider crabs live in shallow areas of the ocean floor, and greenish-brown algae live on the crabs' backs, making the crabs blend in with their environment, and unnoticeable to predators. The algae get a good place to live, and the crab gets camouflage.
Organism 2 is____
Harmed
Helped
Unchanged
1 answer