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.
The general characteristics of plants are that a plant is a  multicellular, eukaryotic organism with cellulose-rich cell walls  and chloroplasts that has starch as the prima â¦ ry carbohydrate food  reserve. Plants are primarily terrestrial, autotrophic (capable of  making their own food) organisms.hese are the DNA of bacteria. Unlike the DNA we have, these plasmids are in a circle, and bacteria can have many different ones. DNA is very muc â¦ h like the code that computers use.