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.
Characteristics of Fungi and Plants. Both the plant and fungus kingdoms have some common characteristics. First, they are both eukaryotic, meaning they belong to the Eukarya domain and that their cells contain a nucleus and membrane-bound organelles.lants, such as trees, flowers, and ferns, are eukaryotic, non-motile organisms that use photosynthesis to get energy. Remember that photosynthesis is a process that converts sunlight and carbon dioxide into oxygen and sugar. While both plants and fungi have cell walls, the cell walls in plants are made of cellulose.