It is the part of the digestive tract where approx 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals.That is, absorption of the nutrients and minerals in the food ingested, usually via the mouth, at an earlier stage in the digestive process.t is the part of the digestive tract where approx 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals.
Green seaweeds. Characteristics: Green colour from chlorophyll a and b in the same proportions as the 'higher' plants; beta-carotene (a yellow pigment); and various characteristic xanthophylls (yellowish or brownish pigments). Food reserves are starch, some fats or oils like higher plants.
Fungi were first classified as plants. However they differ in that  they are heterotrophs while plants are photoautotrophs. Some  characterizes that plants and fungi share a â¦ re: multicellular and  eukaryotic organisms, have cell wall, produce spores and are  non-motile.ungi generally have the following characteristics:  1. They are eukaryotes. This means they have a  nucleus which contains their genetic material (unlike bacteria,  which â¦ do not have a nucleus).  2. They are made of thin threads called hyphae.  The hyphae form a branching network called a  mycelium.