Question

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 one is____

Harmed

Helped

Unchanged

Answer 1

Organism one (the spider crab) is **helped**. The crab benefits from the camouflage provided by the algae, which helps it avoid predators.