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.
Class Demospongia. Class Demospongia is by far the most diverse class of sponges, with over 95% of the known species. Most Demospongia have siliceous spicules, although none of these are the 6-pointed type found in hexactinellids.A number of species in class Demospongia have a skeleton made of interlocking, flexible fibers of collagen.n high wave-shock areas, these sponges are usually only a centimeter or two in thickness. Another good place for biology classes to find living sponges is attached to submerged wood in lakes or streams. Sponges are the simplest living animals, but they are often brightly-colored and spectacular.