A substance that enters into a Chemical reaction is called an reactant.
Answer:
It's a new environment.
Explanation:
People need to adapt to their surroundings if they are introduced to something new.
The answer is XX.
X is a female, XX is a female, Y is a male, XY is a female
The coral provides the algae with a protected safe environment (a home) and compounds they need for photosynthesis. The algae in return, produce oxygen and help the coral to remove wastes. Most importantly, zooxanthellae supply the coral with glucose, glycerol, and amino acids, which are the products of photosynthesis.
