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CASE STUDY; It is impossible to barter unless A has what B wants, and A wants what B has. This is called double coincidence of wants and is difficult to fulfill in practice. Even when each party wants what the other has, it does not follow they can agree on a fair exchange. A good deal of time can be wasted sorting out equations of value. The indivisibility of large items is another problem. For instance if a cow is worth two sacks of wheat, what is one sack of wheat worth? Once again we may need to carry over part of the transaction to a later period of time. It is possible to confuse the use value and exchange value of goods and services in a barter economy. Such a confusion precludes a rational allocation of resources and promotion of economic efficiency. When exchange takes place over time in an economy, it is necessary to store goods for future exchange. If such goods are perishable by nature, then the system will break down. The development of industrial economies usually depends on a division of labour, specialization and allocation of resources on the basis of choices and preferences. Economic efficiency is achieved by economizing on the use of the most scarce resources. Without a common medium of exchange and a common unit of account which is acceptable to both consumers and producers, it is very difficult to achieve an efficient allocation of resources to satisfy consumer preferences.

QUESTIONS

1.how are the Monoclonal antibodies capable of causing the disorder Hybridoma

2.what is the initiator level of the Ig E to the allergic reactions?

3.demonstarte how theLimbic system cause the brain control

4.justify;The virion of Deltavirus is heterogeneous.

5.explainon the pioneer of the novel antigen delta and give a brief history?

6.relate theDeltavirus to the Hepatitis D

7.what is the link of thecircular dsDNA as compared to thegenome of Hepadnavirus

8.falsify;The Human Spumavirus contains oncogene.

9.how is therhesus monkeys aids a concern when dealing with SIV causing disease

10.what is the interconnection between the (TSP) and theHTLV-1