Final answer:
Soft corals have the ability to form symbiotic relationships with algae, which provides them with nutrition and energy through photosynthesis.
Step-by-step explanation:
Soft corals have the ability to form symbiotic relationships with algae. This means that they have a mutually beneficial partnership with algae that live inside them. The algae provide the corals with nutrition and energy through photosynthesis, while the corals provide the algae with a protected habitat and access to sunlight. This competitive advantage helps soft corals survive and thrive in their environment.