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We determine from the state of balance, ‘that what will be the part of each means of production. What will be the cost of all the manufactured goods, and what will be the quantity of goods, and services to be consumed? When we anticipate the achievement of the state of this balance under the economic system, then it is known as static economics.

According to Professor Mehta, many units are included in a society. The science of economics is related to the behaviour of these units. In the opinion of Mehta, in technical language, economics contains the rules of consumption and production. If an economist has full knowledge of the behaviour of the person and has complete knowledge about the environment, then he can surely tell how much he will do, how much quantity he will produce, how much quantity he will sell, how much quantity he will buy, how much quantity he will save, how much quantity he will consume, etc.

The study of the behaviour of a unit presented under the above description is micro economics. It is called micro-economics because its single unit is very small as compared to keeping together all the work together. It gives us information about the situation in which the unit is in a state of equilibrium. The study of all units simultaneously is not individual economics but macro-economics. According to Professor Mehta, the person lives in society. So, economics cannot ignore the study of macro economics, it should study not just one but all of the people.

(c) Minimising wants

(a) Micro-economics

On the rich person

(d) Utility is immeasurable

Professor Mehta has defined the meaning of economics while following Mahatma Gandhi’s principle of simple living, high thinking. Mehta has said that minimizing the needs is a financial problem.

According to Mehta, the definition of economics is as follows : “Economics is a science which studies that human behaviour which attempts to attain the objective of the state of wantlessness.”

The necessity is infinite, unlimited, and as soon as a requirement is met, the second requirement is born immediately. Therefore, Mehta has considered the state of wantlessness as the ultimate goal while following the ‘tenet of Santosh Param Sukham’, the pillar of Indian culture. Mehta considered the state of satisfaction only as a situation of wantlessness in economics. The state of the wantlessness of Professor Mehta is not the state of non-action. In his words, the wantlessness is never the actlessness. When you follow a policy of wantlessness, economic actions do not stop. Changes can be made on the ideal of wantlessness in the production and consumption of goods and services.

This situation does not mean that we stop drinking or eating food, and neither does it mean to stop earning income. All these tasks, which are necessary, have to be done with a selfless purpose. Professor Mehta has also presented the necessity of persistence in the perspective of the principles of Gandhiji is Trusteeship. Only then is the end of these problems possible.

Fulfilling the unlimited requirements from limited resources.

(c) Macro-economics

Wants of human being.

His wants are less.

The presence of wants in order to attain happiness, in the condition that these are not satisfied, there is a feeling of sorrow, which is a symbol of the consciousness of the mind.

According to Professor Mehta, when a requirement is met, there is definite satisfaction. This happiness or satisfaction is achieved in the process of removing suffering. This makes it possible because in the situation of the need being present or inability to satisfy the need, there is a feeling of sorrow, which is a symbol of the consciousness of the brain. According to Mehta, this consciousness is necessary.

According to Prof. Mehta, there are some requirements such that whose absence we feel, but sadness is not prevented. The prevention of suffering does not happen because it does riot exist in the consciousness of the mind. It comes in existence on completion of consciousness. According to Mehta, the fulfillment of the requirements is soothing. A person who has never heard of something nor or has ever seen it, will certainly not need the consciousness to see it, nor will there be a feeling of sadness in the absence of it. But even then if he sees that consciousness, then surely it will be blissful. Thus fulfilling the conscious requirement will provide positive contributions. But once the unconscious need is satisfied, again consciousness comes in front of us as a necessity.

1. Under pure science, we study general theory, while under practical science, appropriate principles in the provided framework are studied. 

2. Under pure economics, the field of pure welfare is more extensive, whereas in practical economics we are in the field of worldly/material aspects. 

3. The principles are included under pure economics, while rules are included under practical economics.

By marginal productivity.

Rent is the surcharge on investment.

The welfare of man is the amount of satisfaction at a given time.

Eyes become susceptible to infection when lachrymal secretion is absent.

Lysozyme is the antibacterial substance present in the tears.

Artificial acquired active and passive immunity is provided by vaccination.

Gambusia fish can be used for mosquito control.

Rh factor:

1. Rh factor is the term adapted from Rhesus monkey. 

2. In rhesus monkey, there is antigen D on the surface of their RBCs. 

3. Landsteiner and Wiener discovered this antigen and termed it as Rh factor. 

4. Persons having Rh factor or D antigen are called Rh positive while those lacking D antigen or Rh factor are called Rh negative.

Edward Jenner was the British scientist who developed cowpox vaccine for the protection against small pox virus.

Arthralgia means joint pains.

Blood group of Mrunmayi is AB.

Different foreign substances that invade the body and are capable of stimulating an immune response are called antigens.

(b) Mycobacterium tuberculosis

Sporozoite is a developmental stage of Plasmodium produced by rupture of oocyst. Sporozoite can enter the bloodstream in human body and then infect hepatocytes or liver cells, where they multiply into merozoites.

Answer is (c) measles

Dermatophytosis is a clinical condition in which fungal infection of skin occur in humans, pets and cattle which is commonly called as ringworm.

Elephantiasis is one of the symptoms of lymphatic filariasis, in which there is thickening of skin and underlying tissues due to presence of malarial parasite.

Rh factor was first discovered in Rhesus monkey for the first time.

1. Krutika has O blood group, therefore her genotype is I°I°. 

2. Her parents can be of following combinations. 

3. They may be having blood group A or B with heterozygous genotype respectively, i.e. IAI° and IBI°. If both of them are heterozygous, having either A or B blood group, Krutika can be of O type. 

4. Other possibility is both the parents have to be O. 

5. For being Rh positive, her at least one parent should be Rh positive. Rh negative is a recessive phenotype and hence needs double dose of these genes.

Antigen ‘D’ present on the surface of RBCs is known as Rh factor.

Schizont is a ring-like form produced from merozoites inside the erythrocytes of human beings, infected by Plasmodium, which again forms new merozoites.

Correct option is C) Osmosis

B) Selectively permeable membrane

Correct option is B) Pushing

Correct option is A) Diffusion

A) The concentration of cytoplasm is more than cool drink

B) Reverse Osmosis

Correct option is A) Dil. HCl

B) size decreases

Correct option is A) Shrinks

Correct option is D) Diffusion

Correct option is A) HCl

B) exosmosis

D) endosmosis

Answer is (a) maximize z = cx subjected to AX ≤, =, > B, x ≥ 0