Many schools report your GPA on a 4.0 scale. Obtaining this grade at the end of the semester would be the equivalent of getting all A's or perfect scores in all your classes. If you have perfect scores all around then there is no need to use this calculator as your GPA is obviously 4.0.
coral. 1  the hard, variously colored, calcareous skeleton secreted by certain marine polyps. 2  such skeletons collectively, forming reefs, islands, etc. 3  the solitary or colonial polyp that secretes this calcareous skeleton. 4  a reddish yellow; light yellowish red; pinkish yellow.
Coral reefs are colonies of individual animals called polyps, which are related to sea anemones. The polyps, which have tentacles to feed on plankton at night, play host to zooxanthellae, symbiotic algae that live within their tissues and give the coral its color.