The normal heart rate for adults generally ranges from 60 to 100 beats per minute. This means your heart normally beats one to two times per second. Calculate your resting heart rate by placing your index and middle fingers on your neck to the side of your windpipe.
Making the world better, one answer at a time. Kingdom: Animalia, Phylum: Porifera. The class, order, family, genus and species depends on which kind of sea sponge you mean.aking the world better, one answer at a time. Kingdom: Animalia, Phylum: Porifera. The class, order, family, genus and species depends on which kind of sea sponge you mean.
they share subclass elasmobranchii with sharks and chimaeras rays account for about half of all elasmobranch species of the 500 or more described ray species there are over 150 stingray species that are assigned to approximately 20 genera freshwater stingrays of the family potamotrygonidae are assigned to the genera paratrygon plesiotrygon heliotrygon and potamotrygon to date as many as 20 described species are assigned to potamotrygon p hystrix is recognized as the type species