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q what do you undersand by pollutionthe pollution is the contamination of an ecosystem by factors that are harmful for the equilibrium of its abiotic
explain precautions for preparation of bacterial smear1 plates used should be prepared 24 hours before use to avoid spreading of colonies due to
q what is the typical conformation of the age pyramids of underdeveloped countriesthe age pyramids of the peripheral countries or the underdeveloped
explain procedure for preparation of bacterial smearnow carry out the exercise using the steps enumerated herewith1 collect swab samples from the
q what are the main characteristics of the age pyramids of developed countriesin the stabilized human population the age pyramid has a narrower base
q what are the analyses provided by the study of human age pyramidsthe study of human age pyramids able to provide the following analyses proportion
q what are age pyramidsage pyramids are the graphical representations in form of superposed rectangles each representing the number of individuals
explain the filtration - air samplingfiltration - air stream may also be filtered through a micro-filter microorganisms are released from the
q how different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a
explain the air samplers - air samplingair samplers eg all glass impinger and the andersen sieve samplers may be used volume of the air sampled is
explain the sedimentation - air samplingit is the simplest method which involves exposing agar plates in air for specified time at a location to be
explain the air samplingmicroorganisms may be present in air of processing facility and have an impact on the quality and safety of foods processed
q what is the relationship between environmental resistance and the population growth according to the biotic potential curve and the real population
q how do populations of predators and prey vary in predatismwhenever a predator population enhance at the first moment the prey population tends to
q how do the availability of water and light and the climate affect the growth of a populationthe availability of light and water and the climate are
q what are the main limiting factors for the growth of a populationthe factors that bound the growth of a population can be divided into abiotic
the environmental resistance is the action of limiting biotic and abiotic factors that disallow the growth of a population as it would grow according
q what is the typical shape of a population growth curve how can the biotic potential be represented in the same way graphicallya usual population
q what is biotic potentialthe biotic potential is the capability of growth of a given population under hypothetical optimum conditions ie in an
q what are some examples of migratory animalsinstance of the migratory animals are southern right whales from antarctica that procreate on the
q what are the main factors that affect the growth of a populationthe major factors that make populations grow are births and immigration the major
q how different are the concepts of migration emigration and immigrationthe migration is the moving of individuals of a species from one place to
q what is population growth ratethe population growth rate pgr is the percent variation between the numbers of individuals in a population at two
q what is population densitythe population density is the relation between the number of individuals of a population and the area or volume they
q what is a populationin the biology a population is a set of individuals of the same species living in a given place and in a given