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151.

Question : What is skeletal connective tissue? How is it helpful in the functioning of our body?

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Solution :The SUPPORTING or skeletal CONNECTIVE TISSUES forms the ENDOSKELETON of the vertebrate body they support the body, protect various organs and help in locomotion. This system is composed of connective tissue including BONE, cartilage, tendons, and ligaments.
Discussion
152.

Question : What is pulse polio programme?

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SOLUTION :PULSE POLIO is an mass IMMUNIZATION programme established by the Government of India for ELIMINATION of polio in India by vaccinating all children under the age of five years against the poliovirus.
Discussion
153.

Question : What is pulmonary circulation?

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Answer :The blood CIRCULATION that starts from the right ventricle to the lungs and from there to left ATRIUM is CALLED PULMONARY circulation.
Discussion
154.

Question : What is pulse?

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Answer :The wave like MOVEMENT FORMED DUE to the constraction and RELAXATION of the heart is felt throughout the WALLS of the arteries is pulse.
Discussion
155.

Question : What is pericardial fluid? What is its main function?

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ANSWER :Pericardial fluid is filled in between the percardial membranes. Its MAIN function is to reduce friction between the membranes during the HEART BEATS.
Discussion
156.

Question : What is peculiarity of bilateral symmetry ?

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ANSWER :N/a
Discussion
157.

Question : What is pasturage and how is it related to honey production?

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Solution :Pasturate is the flowers available for the honey bees for the COLLECTION of nectar and pollen. The KIND of flowers from which nectar is COLLECTED also decided the TASTE of the honey.
Discussion
158.

Question : What is osmosis ?

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SOLUTION :OSMOSIS is the movement of WATER from region of higher concentration to region of LOWER concentration through semi-permeable membrane. It is a special case of diffusion.
Discussion
159.

Question : What is orgnic farming? How is it done?

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Solution :1. The farming system with minimal or no use of chemicals as fertilizers is called organic farming.
2. In organic farming even the herbicides, pesticides, etc are not USED.
3. In such systems maximum input of organic manures, recycled farm -waters (straw and livestock EXCRETA) are used.
4.BIo agents are prepared from culture of blue green algae which in turn is used in preparation of bio fertilizers.
5. During storage, neem leaves or TURMERIC is used which act as bio pesticides.
6. Healthy cropping systems such as mixed cropping, inter cropping and crop rotation are the METHODS that are used in orgnic farming.
Discussion
160.

Question : What is metameric segmentation ?

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ANSWER :N/a
Discussion
161.

Question : What is membrane biogenesis ?

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Solution :Building up of a CELL membrane USING PROTEINS and lipids SYNTHESIZED by SER, is known as membrane biogenesis.
Discussion
162.

Question : What is meant by endocytosis? Name the organism which uses this process.

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SOLUTION :Engulfing FOOD and other materials from the outside of the CELL through the cell membrane is called endocytosis, which is SEEN in Amoeba.
Discussion
163.

Question : What is meant by community ? How our personal health is related to the community issues ? Explain in brief.

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Solution :(1) Community is the area in which particular group of PEOPLE stay together and INTERACT with each other.
(2) We may observe cleanliness and hygiene on our personal basis limited to our own home. But when we behave in the community, we may not follow same hygicne standards.
(3) In the community if the garbage is strewn, dirty water is allowed to be stagnated, SEWAGE water is percolating out or some people are defaecating in the open, then the community health suffers.
(4) This may reflect on our personal health too.
(5) Different communicable diseases may spread due to such unhygienic CONDITIONS. In this way our personal health is related to the community issues.
Discussion
164.

Question : What is Malnutrition ?

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Solution :ABSENCE of certain NUTRIENTS in our daily diet over a LONG period of TIME leads to deficiency diseases . This condition is called MALNUTRITION .
Discussion
165.

Question : What is lymph capillary?

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ANSWER :Besides blood CAPILLARIES, small vessels with their one end closed are seen in INTER cellular spaces. These are the lymph capillaries.
Discussion
166.

Question : What is lignin?

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Solution :Lignin is a COMPLEX POLYMER that is PRESENT in scheronchymatic TISSUES Lignin is water proof MATERIAL.
Discussion
167.

Question : What is lactation periods?

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Solution :PERIOD of MILK production after BIRTH of a CALF is KNOWN as lactation period.
Discussion
168.

Question : What is IUCN? What is the vision of IUCN?

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Solution :IUCN is an international organization working in the field of nature CONSERVATION and SUSTAINABLE use of natural resources.
The vision of IUCN is ‘A just world that values and CONSERVES nature..
Discussion
169.

Question : What is inflammation ?

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SOLUTION :When there is an infection, an active IMMUNE SYSTEM recruits many cells to the AFFECTED tissue to kill off the disease-causing microbes, this recruitment process is called inflammation.
Discussion
170.

Question : What is India's position in production of poultry ?

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SOLUTION :PHEROMONE
Discussion
171.

Question : What is immunization?

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Solution :IMMUNIZATION is the process whereby a person is MADE immune or RESISTANT to an infectious disease, by GIVING a vaccine. VACCINES stimulate the body.s own immune system to protect the person against subsequent infection or disease.
Discussion
172.

Question : What is Homeostasis?

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ANSWER :Maintenance of internal EQUILIBRIUM by REMOVAL of harmful materials is called HOMEOSTASIS.
Discussion
173.

Question : What is histology?

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SOLUTION :The STUDY of TISSUES is KNOWN as HISTOLOGY.
Discussion
174.

Question : What is green manure? How is it beneficial?

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Solution :Green manure is obtained by COLLECTION and decomposition of green leaves,twiigs of trees, SHURBS and HERBS growing in wastelenads, field bunds etc. Green manure improves soil structure, increases WATER holding capacity and decreases soil loss by erosion.It also helps in reclamation of alkaline soils and reduces weed proliferation.It is a manure obtained from undecomposed green material derived from leguminous PLANTS e.g Sunhemp,Dhaincha etc.
Discussion
175.

Question : What is genetic manipulation? How is it useful in agricultural practices?

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Solution :1. Genetic manipulation is the technique USED to produce GM crops. In this practice, the desirable gene is introduced into the crop varieties by hybridisation or by DNA recombinant technology.
2. The original GENES of a particular variety are thus manipulted and a new recombination is PRODUCED.
3. In agricultural practices, such GM varieties are said to have better yield, better resistance from pathoges lesser pest attacks on them (as in case of BT cotton), SHORT and early maturation period seedless varieties of grapes and PAPAYA).
Discussion
176.

Question : What is fumigation ?

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Solution :DESTROYING PESTS by CHEMICAL fumes or vapours.
Discussion
177.

Question : What is food spoilage? What are the factors responsible for food spoilage ?

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Solution :Food spoilage is an undesirable change in the food.s normal state and is not nsuitable for eating is called food spoillage . There are two factors RESPONSIBLE for food spoilage .
1. Internal Factors : Internal factors include ENZYMATIC activities and moisture content of the food .
2. External Factors : External factors LIKE adulterants in food , lack of storage facilities , Unhygienic cooking area , micro organisms ECT are responsible for food spoilage .
Discussion
178.

Question : What is fermentation?

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ANSWER :Fementation is the process of the producfion óf lacóc acid or ALCOHOL from gIucose’by anaerobic RESPIRATION
Discussion
179.

Question : What is feed ?

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Solution :Domestic animal's food that contains essential COMPONENTS needed for the GROWTH, DEVELOPMENT, and GENERAL maintenance of BODY is called feed.
Discussion
180.

Question : What is evolution? How is classification connected to evolution ?

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Solution :(1) Gradual change that occurred in the body characteristics of living organisms is called evolution. (2) The diverse life forms that we see TODAY are due to accumulation of the changed characteristics. (3) In order to increase the survival, the animals adapted to the ENVIRONMENT and THUS evolution proceeded in a sequential WAY. (4) When CLASSIFICATION is linked to evolution, we see the hierarchy of characters occurring in different animal groups.
Discussion
181.

Question : What is endoplasmic reticulum?

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SOLUTION :Endoplasmic RETICULUM is a cell organelle in the FORM of large network of membrane-bound tubes and SHEETS
Discussion
182.

Question : What is dialysis or artificial kidney ?

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Solution :When kidneys lose their filtering efficiency, excessive amount of FLUID and toxic waste accumulate in the BODY. This condition is known as kidney (renal) failure. For this, an artificial kidney is used to filter the blood of the patient. The patient is said to be PUT on dialysis and the process of PURIFYING blood by an artificial kidney is called haemodialysis. When renal failure cannot be treated by drug or dialysis, the patients are advised for kidney tranplantation.
Discussion
183.

Question : What is data processing?

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Solution :The DATA processing in a COMPUTER is collecting data and converting it into INFORMATION ACCORDING to our NEEDS and requirements.
Discussion
184.

Question : What is composting? How is vermicompost preapred? Why compost is called good manure?

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SOLUTION :1. Composting is the process in which biodegradable waste MATERIALS like livestock excreta such as cow dung vegetable waste, animal refuse, domestic waste, sewage waste, straw, eradicated WEEDS etc is colected, stored in pits and then allowed to decompose.
2. The pits in which the composting is done are called composting pits.
3. When composting is added by using live earthworms, it is called vermicomposting.
4.Due to earthworm.s activity the compositing process occurs rapidly.
5. Composting gives rise to rich maure, popularly known as compost. It is rich in organic matter and nutrients.
6. Such manure increases the water holdingcapacity of SOIL.
Discussion
185.

Question : What is complex tissue? Name the various kinds of complex tissues.

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Solution :Complex TISSUES are MADE of more than one TYPE of cells that work together as a unit Complex tissues consist of parenchyma and sclerenchyma cells. Common EXAMPLES are xylen and PHLOEM.
Discussion
186.

Question : What is cell theory? Give detail about

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SOLUTION :ell Theory: In 1838, Jakob Matthias Schleiden (1804-1881), a German botanist, first proposed the idea that all plants consist of cells. A year later in 1839, Theodor Schwann (1810-1882) a German ZOOLOGIST, independently asserted that all animals and plants are made-up of cells. This joint finding forms the basis of the cell theory.
The cell theory was refined further in 1855, when another German biologist. Rudolf Virchow presented the idea that all cells arise from preexisting cell. (His actual aphorism was .Omnis Cellulac a cellula.). Thus, the cell theory comprises of the following postulates :
( 1 ) All organisms are composed of cells and cell products. (e.g.. SECRETIONS)
(2 ) All metabolic reactions take place in cells. Thus, cells are structural and functional units of LIFE.
(3) All cells arise from pre-existing cells only. No cell can originate spontaneously or de novo (a new) but comes into being only by division of already existing cells.
(4) Every organism starts its life as a SINGLE cell. Viruses are an exception to cell theory.
Discussion
187.

Question : What is bilateral symmetry ?

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Solution : (1) When the left and the RIGHT halves of the body have a same DESIGN, it is CALLED BILATERAL symmetry. (2) Such animal body can be cut into exact two halves only in one vertical plane.
Discussion
188.

Question : What is an acute disease ?

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ANSWER :DISEASES that last for only very short periods of time are called acute diseases.
Discussion
189.

Question : What is an adulterant ?

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SOLUTION :An adulterant is an UNDESIRABLE substance added to the food against the food safety STANDARDS.
Discussion
190.

Question : What is meant by adaptation?

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Solution :Any feature of an ORGANISM or its part that enables it to exist under conditions of its HABITAT is called ADAPTATION.
Discussion
191.

Question : What is nematocyst?

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Solution :The stinging cells present at tentacles of aquatic animals LIKE jelly fish, HYDRA, ETC in phylum coelenterata is CALLED NEMATOCYST (cnidoblast)
Discussion
192.

Question : What is a memory unit and where is it present?

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Solution :The memory UNIT in the COMPUTER saves all data and INFORMATION temporarily.it is present in the CENTRAL Processing Unit (CPU) which is the brain of the Computer.
Discussion
193.

Question : What is a food chain?

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Solution :The link in the cycle of RELATIONSHIP between PLANTS, ANIMALS and micro organisms are CALLED food CHAIN.
Discussion
194.

Question : What is a disease? How do we know that a person is diseased ? What can be the various causes for a person getting diseases ?

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Solution :(1) DISEASE means disturbed ease. The person who is diseased shows discomfort.
(2) The signs and symptoms of a disease are self-explanatory. The person shows specific symptoms for a particular disease.
(3) Symptoms can be HEADACHE, body ache, fever, cough. loose motions or rash on the skin. These symptoms are studied by a physician and also other signs are noted.
(4) Laboratory tests also substantiate the finding. Thus, we know that a person is diseased.
(5) Diseases are of main two types, viz, communicable and non-communicable. Communicable diseases are passed from one person to other through pathogens. Non-communicable diseases are caused due to various other REASONS. Causes of the disease are of the following types
(1) External causes like pathogens or microbes Water Tood, aninial BITE or sexual contact may transmit the pathogens from external source:
(ii) Internal causes: Poor nourishment, lack of immunity, metabolic problem can be internal causes to express a disease.
(ii) Genetic caues : Some diseases are inbron and are inherited through the parent.s GENES.
(iv) Social causes or diseases due to public hygiene.
Discussion
195.

Question : What is a cork?

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SOLUTION :Cork is a SUBSTANCE that is obtained from the bark of the tree.
Discussion
196.

Question : What is a chronic disease ?

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ANSWER :Diseases that can last for a LONG TIME MAY be even for a LIFETIME are called chronic diseases.
Discussion
197.

Question : What is a balanced diet ?

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Solution :A DIET containing ESSENTIAL nutrients in right proportion for normal growth and development and to prevent Malnutrition is CALLED Balanced diet .
Discussion
198.

Question : What has increased by green revolution?

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SOLUTION :Food-grain PRODUCTION
Discussion
199.

Question : What happens when fresh grapes are kept in concentrated sugar solution ?

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Answer :FRESH grapes shrink due to EXOSMOSIS.
Discussion
200.

Question : What happens when animal/plant cell is put in aqueous hypotonic solution ?

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WATER enters the cell.
Cell LOSES water.
Water REGULATION takes place by vacuoles.
Digestion takes place by food vacuoles

Answer :A::C
Discussion