As a multi-cellular creature, the bullfrog is in the kingdom Animalia, also known as Metazoa. Animalia also contains fishes, arthropods, mammals, reptiles and many others. Bullfrogs belong to the phylum Chordates, a group of creatures characterized by having a rod that extends the length of the body. The subphylum is Vertebrata, or the vertebrates and the bullfrog's class is Amphibia, the amphibians including frogs and salamanders.
What is Vitamin A Good for. Vitamins are essential nutrients required to carry out most of the important functions in the body. Vitamins are divided into 6 types, viz. Vitamin A, B, C, D, E and K. Among them, vitamins A, D, E and K are fat-soluble ones while vitamins B and C are water-soluble vitamins.Vitamins are very essential for growth, cell division, proper functioning of the cell, etc. hope you have gotten a satisfactory answer to your query what is vitamin A good for. Hence, you should try and include vitamin A rich foods in your diet regularly. As a concluding note, one should remember that vitamin deficiency disorders can be prevented merely by having a nutritious and balanced diet everyday.
Vitamin D, one of the 13 essential vitamins, helps the body absorb calcium, supports the immune system, aids in normal nerve and muscle function and regulates the production of proteins important for the development and growth of cells.