Coral reefs are built by coral polyps as they secrete layers of calcium carbonate beneath their bodies. And inside each coral poly lives single-celled algae called zooxanthellae. So basically in simplistic terms, coral polys create coral reefs and algae is in coral polys which also goes into coral reefs when they are made.
The wolf exhibits caution and fear, because it now knows that attacking porcupines will result in getting stung by quills.
Red I believe is the answer
By water and eggs took the test on edge it’s B