The answer to this is the last option i think
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.
Hi!
Could you please be more specific, so that I can answer your question properly? Layer of what?
<span>1. What bacteria causes strep throat?
Streptococcus
2. What are the oldest life forms on earth?
Archaebacteria
3. What type of bacteria causes food poisoning?
Salmonella
4. What part of the bacteria cell helps it stick to surfaces?
Pilli
5. Name two foods that bacteria help make:
cheese, yogurt
6. What does “decompose” mean?
Break down
7. What is the control center of the bacteria cell?
DNA
8. Where do Archaebacteria live?
Flagella
9. To what kingdom do common bacteria belong?
Extreme environments
10. List one structure that is found in a bacteria cell that is also found in a human cell.
Eubacteria</span>