A coral reef is made of thin layers of calcium carbonate. Coral polyps form a living mat over a calcium carbonate skeleton. Stony corals (or scleractinians) are the corals primarily responsible for laying the foundations of, and building up, reef structures.
Answer:
26% is the percent of the population will have an A blood type (Option C)
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Answer:
B. methane
Explaination: ...............................
