If a match is tied after 90 minutes, the two teams will play 30 minutes of extra time, separated into two 15-minute periods. In both periods, stoppage time will be calculated and added on, just like it is during the first and second halves.
Class Osteichthyes Diagnostic characters: 1. Bony endoskeleton 2. dorsal nares 3. two sets of paired fins 4. swim bladder (most species) Infraclass Teleostei Diagnostic characteristics: 1. homocercal tail 2. cycloid or ctenoid scales Ctenoid scale from Perca flavescens Perca flavcescens, the yellow perch (Mitchell 1814)
There are 5 classes: Branchiopoda (fairy shrimp, water fleas) Cephalocarida (small crustaceans) Malacostraca (isopods, amphipods, krill, crabs, shrimp, lobsters) Maxillopoda (copepods, barnacles) Remipedia (small, recently discovered crustaceans) Subphylum Uniramia This is the largest of the subphyla.rabs and Amphipods. Phylum Arthropoda This is the largest and most successful of the animal phyla, with over 1 000 000 species identified to date and an estimated 1 000 000 000 000 000 000 (1 quintillion) individuals alive today.