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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.
Heart of cockroach: In cockroach, heart is situated in pericardial sinus. It has13 chambers These are one behind the other. Each chamber opens into preceeding one. The
What is Hyperhomocysteinaemia ? Homocysteine has been considered as a risk factor for Cardio-vascular diseases because of many epidemiological and observational studies showing
Q What are the two big groups into which cells are classified? Cells can be classified as prokaryotic or eukaryotic. Prokaryotic cell is that with no delimited nucleus. Eukaryo
Based on your knowledge of neoplasia, discuss biochemical methods of detecting tumors, and imaging characteristics (in your particular imaging modality) that suggest malignancy. Ex
ABO blood groups in humans are controlled by the gene I. It has three alleles - IA, IB and i. As there are three dissimilar alleles, six different genotypes are possible. How many
In the hybridization of 2 genes (4 different alleles, 2 of each pair) how does epistasis affect the proportion of phenotypical forms in the F2 generation? In the dihybridism wi
A large leaf on a plant in bright sunshine evaporates 5 grams of water per hour. Cooling the leaf through evaporation in this manner enables the plant to eliminate heat energy at t
explain anatomy of bacteria
Q. What are the organs that are part of the female reproductive system? The organs that constitute the female reproductive system are the ovaries, the uterus, the Fallopian tub
how a simple medium can be converted into selective differential and enriched medium?
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