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the complete set of alleles (different forms of genes) making up the genetic material of a particular species or population.
allergic reaction to certain allergens such as pollen. It causes sneezing, a runny nose and...
an extreme shortage of food over a large area which affects a large number of people.
a measure showing the number of dependents (aged 0-14 and over the age of 65) to the total...
compounds that consist of any combination of elements, but do not usually contain carbon and...