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COMMUNITYIf you look around yourself you will notice that populations of plants and animals seldom occur by themselves. The reason for this is quite obvious. In order to survive individuals of any one species depend on individuals of different species with which they actively interact in several ways. A population of squirrels would require fruits and nuts for food and trees for shelter. Even plants cannot exist by themselves; for example, they require animals for , seed dispersal, pollination and soil microorganism to facilitate nutrient supply to them through decomposition.In nature 'an aggregation of populations of different species (plant andlor animals) in an area, living together with mutual tolerance and beneficial interactions amongst themselves and with their environment, form a biotic community.Communities in most instances are named after the dominant plant form species. A grassland, for example, is dominated by grasses, though it may contain herbs, shrubs, and trees, along with associated animals of different species.The definition and description of the community so far must have made you aware that the size of a community is not fixed or rigid; communities may be large or small.
How Age factors Affecting the calcium absorption? Age is another factor which influences the absorption of calcium. Fractional absorption of calcium is highest in infancy i.e.,
true or false. the law of entropy says that all energy is ultimately derived from the sun
What is the fundamental difference between protozoans and algae? The basic difference among protozoans and algae is the fact that protozoans are heterotrophs whereas algae are p
CYTOCHEMISTR Y OF PROTOPLASM - It is supper mixture or mixture of mixtures . 3 4 elements present in it. 1 3 elements are universal. e.g. C, H, O, N, P, K, S,
BLOOD SAMPLING : In blood sampling, the skin is deliberately punctured in order to take a blood sample for analysis. If this is done carelessly, it is easy for microorganisms eith
Algae have cell wall made up of: 1. Cellulose, galactans and mannans 2. Hemicellulose, pectins and proteins 3. Pectins, cellulose and proteins 4. Cellulose, hemicellulo
Explain the Reinforcement of Patch using Fibrin Glue? Reinforcement of Patch using Fibrin Glue : In this technique Dacron graft is first sutured to the septum beyond i
Transmission Electron Microscopy The source of illumination in a TEM is a tungsten filament that emits electrons. A vacuum is created to prevent the collision of electrons with a
Biomass energy Energy produced by burning biomass it is known as biomass energy. When biomass is burnt, it releases stored chemical energy, which has accumulated in it through
The human skeleton has evolved from that of four-legged animals. Unfortunately, the adaptation is far from perfect; thus, our upright posture causes problems like backage and the k
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