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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.
Cell structure and function All organisms, whether simple or complex, plants or animals. are composed of cells. For example, a bacterium or an amoeba is made up of just one cel
Q. How does digestion in beings of the phylum Annelida work and which type of digestive system do they have? Digestion in beings of the phylum Annelida is extracellular. These
What are persistent organic pollutants (POPs)? POPs, or persistent organic pollutants, are toxic substances formed from organic compounds. POPs are made in several industrial p
Q. What is myoglobin? What is the function of this molecule in the muscle tissue? Myoglobin is a present in muscle pigment and fibers similar to hemoglobin. Myoglobin has a gre
RECIPROCAL CROSSES Similar results were obtained with reciprocal crosses also. A reciprocal crosses involves the same traits but carried by sexes opposite to those in the origi
What are the three main types of RNA? What is meant by heterogeneous RNA? Messenger RNA, or mRNA, transfer RNA, or tRNA, and ribosomal RNA, or rRNA, are the three main kinds of
Explain Procedure for Estimation of Sucrose by Fehling Soxhlet Method? Follow the proceedure enumerated herewith and carry out the experiment: 1. Standard titration (Standar
1. Many bacterial genes show adaptive regulation of their transcription. a) How is the lac operon regulated by the sigma factor? b) How is the lac operon regulated by lactose
Define hydrolytic rancidity Lipolysis is a major action occurring during deep fat frying due to large amounts of water introduced from the food and the relatively high temperat
Hormones
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