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Q. What are persistent organic pollutants (POPs)?
The POPs, or persistent organic pollutants, are toxic substances formed from organic compounds. The POPs are made in several industrial processes, like the production of PVC, paper whitened by chlorine, herbicides, insecticides and fungicides, and as well in the incineration of waste. Instances of POPs are dioxins, furanes, heptachloride, chlordane, DDT, dieldrin, toxaphen and hexachlorbenzene.
The POPs are highly harmful and toxic since, like the heavy metals, they are bioaccumulative, that is they are not degraded by the body and accumulate even more in each following trophic level of the food chains. In humans the POPs can cause nervous and cancer, immune and reproductive impairments.
Fensom and Spanner Electroosmotic Flow Hypothesis In electroosmosis the ions flow across a membrane in response to electrical gradient. Ions pull along water and other content
What is allele frequency? The Allele frequency is the percentage of appearances of an allele in the genotypes of a given population (compared to the other alleles of the studie
1. Discuss how nursing has changed over the last two (2) decades. 2. Review and summarise the philosophy of your enrolled nurse course and its relevance to your clinical practic
ACRODYNAM IC S Division of air in lungs. Measured by spirometer. 1. Tidal Air (T.A.): Quantity of air taken in or given out in a breath 500 cc. 2. Inspiratory Reserv
Bacteria never have a nucleus but some members of the domain Archaea are known to contain a true nucleus.
It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.
Most of the coronary blood flow to the left ventricular myocardium occurs during diastole. Thus the contracting heart obstructs its own blood supply. The systolic compressive force
diff b/w protonephridia and metanephridia
Acute Mitral Regurgitation : This may be caused by chordal rupture, infective endocarditis or acute myocardial infarction. In acute myocardial infarction, one of the papilla
#question.why obelia is considered of special interest in zoology.
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