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Organisms and population...

Organisms and population

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If the frequency of recesive phenotype is 9% then find out the number of homozygous organisms in population of 50,000 individuals:-

A population is

Population is

If natality and mortality of a population are nearly same it will be termed as: (a) Young population (b) Stable population (c) declining population (d) growing population

Assertion: Lemmings of Tundra follow population fluctuations. Reason: These show sudden increase in population in shorl time followed by population crash.

The migration of gene in to a population from other population by interbreediing is called

Assertion : The rate at which a population can be expected to grow in the future can be assessed graphically by means ofa population pyrmid. Reason : A triangular population pyramid is characteristics of a country whose population is stable, neither growing nor shrinking.

Assertion: Population ecology is a link of ecology to population genetics and evolution. Reason: Natural selection operates at population level to evolve the desired traits.

Members of a population

Arrange the following levels of biologic organisation in an ascending order : atom, cell, community, ecosystem, individual, molecule, organ, organelle, population, species, tissue.