This type of classification used to be used when classifying the protostome organisms.
In this type of organism, the oral cavity develops from the blastophore, the initial cavity in the gastrula, an early stage of the development of the embryo.
Small sugars (monosaccharides and disaccharides) glucose fructose, sucrose etc
Amino acids
B; An unshelled fish is lively and elusive past the power of words to portray, and in this, undoubtedly, lies its desirability.