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class 10 science trick  for homologous and analogous organs
 
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The basic structure of the limbs is similar though it has been modified to perform different functions in various vertebrates. Such a homologous characteristic helps to identify an evolutionary relationship between apparently different species.The designs of the two wings, their structure and components, are thus very different. They look similar because they have a common use for flying, but their origins are not common. This makes them analogous characteristics, rather than homologous characteristics.
Views: 10861 Ncert Tutorial
urey and miiller experiment || origin of life heredity and evolution class 10 in hindi part 13
 
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Origin of life on earth Darwin’s theory of evolution tells us how life evolved from simple to more complex forms and Mendel’s experiments give us the mechanism for the inheritance of traits from one generation to the next. But neither tells us anything about how life began on earth in the first place. J.B.S. Haldane, a British scientist (who became a citizen of India later), suggested in 1929 that life must have developed from the simple inorganic molecules which weren present on earth soon after it was formed. He speculated that the conditions on earth at that time, which were far from the conditions we see today, could have given rise to more complex organic molecules that were necessary for life. The first primitive organisms would arise from further chemical synthesis. How did these organic molecules arise? An answer was suggested by the experiment conducted by Stanley L. Miller and Harold C. Urey in 1953. They assembled an atmosphere similar to that thought to exist on early earth (this had molecules like ammonia, methane and hydrogen sulphide, but no oxygen) over water. This was maintained at a temperature just below 100°C and sparks were passed through the mixture of gases to simulate lightning. At the end of a week, 15% of the carbon (from methane) had been converted to simple compounds of carbon including amino acids which make up protein molecules. So, can life arise afresh on earth even now?
Views: 15283 Ncert Tutorial
Chapter 1 - Part 1 - Class IX - French Revolution
 
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in this video we are going to study class 9th history clapter 1 french Revolution and this is 1st video of this series. next video:-https://youtu.be/C2gbnwQwJ_M playylist lnk:-https://www.youtube.com/watch?v=0WM5P3lsrXY&list=PLwSTdlvOT9ecQm74hytPesbdare5waZWB
Views: 251023 Ncert Tutorial
Class 10- NCERT - ECONOMICS- Chapter 5 -CONSUMER RIGHTS [PART 1]
 
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in this video we are studying class 10th economics chapter 5 CONSUMER RIGHTS and this is 1ST part of this series. next video -https://youtu.be/n3YVFWnh6Xo playlist link:-https://www.youtube.com/playlist?list=PLwSTdlvOT9ecEdIgjPc4C0xHiWj7_hf08
Views: 26319 Ncert Tutorial
Class 10 CIVICS/POLITY NCERT- Chapter 1 - POWER SHARING [PART 1]
 
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in this video we will study class 10 CIVICS/POLITY chapter 1 POWER SHARING and this is 1ST part of this series. next video:---https://youtu.be/R_5-DpNAquA playlist link----https://www.youtube.com/playlist?list=PLwSTdlvOT9edWPHdmHL7SXWaNcLd8NMra
Views: 89299 Ncert Tutorial
versatile nature of carbon || class 10 chapter 4  carbon and its compound ||  part 13
 
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VERSATILE NATURE OF CARBON We have seen the formation of covalent bonds by the sharing of electrons in various elements and compounds. We have also seen the structure of a simple carbon compound, methane. In the beginning of the Chapter, we saw how many things we use contain carbon. In fact, we ourselves are made up of carbon compounds. The numbers of carbon compounds whose formulae are known to chemists was recently estimated to be about three million! This outnumbers by a large margin the compounds formed by all the other elements put together. Why is it that this property is seen in carbon and no other element? The nature of the covalent bond enables carbon to form a large number of compounds. Two factors noticed in the case of carbon are – (i) Carbon has the unique ability to form bonds with other atoms of carbon, giving rise to large molecules. This property is called catenation. These compounds may have long chains of carbon, branched chains of carbon or even carbon atoms arranged in rings. In addition, carbon atoms may be linked by single, double or triple bonds. Compounds of carbon, which are linked by only single bonds between the carbon atoms are called saturated compounds. Compounds of carbon having double or triple bonds between their carbon atoms are called unsaturated compounds. No other element exhibits the property of catenation to the extent seen in carbon compounds. Silicon forms compounds with hydrogen which have chains of upto seven or eight atoms, but these compounds are very reactive. The carbon-carbon bond is very strong and hence stable. This gives us the large number of compounds with many carbon atoms linked to each other. (ii) Since carbon has a valency of four, it is capable of bonding with four other atoms of carbon or atoms of some other mono-valent element. Compounds of carbon are formed with oxygen, hydrogen, nitrogen, sulphur, chlorine and many other elements giving rise to compounds with specific properties which depend on the elements other than carbon present in the molecule. Again the bonds that carbon forms with most other elements are very strong making these compounds exceptionally stable. One reason for the formation of strong bonds by carbon is its small size. This enables the nucleus to hold on to the shared pairs of electrons strongly. The bonds formed by elements having larger atoms are much weaker.
Views: 6638 Ncert Tutorial
ECONOMICS- Class 10- NCERT - Chapter 4 -Globalisation and Indian Economy [PART 1]
 
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in this video we are studying class 10th economics chapter 4 Globalisation and Indian Economy and this is 1st part of this series. next video -https://youtu.be/-rpi6RNBaXw playlist link:-https://www.youtube.com/playlist?list=PLwSTdlvOT9eew-D2lB1y0Dww5-_Dw2vHZ
Views: 58025 Ncert Tutorial
sign convention for spherical mirrors class 10 in hindi | light part 9
 
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Sign Convention for Reflection by Spherical Mirrors
Views: 11985 Ncert Tutorial
tracing evolutionary relationships || CLASS 10 chapter 9 heredity and evolution part 16
 
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VIDEO CONTAINS DIFFERENCE IN HOMOLOGOUS ORGAN AND ANALOGOUS ORGAN
Views: 10957 Ncert Tutorial
class-9 History chapter-3 [part 1]
 
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IN THIS video you will study ncert class 9 history chapter 3 . and this is 1st video of this series. next video:----https://youtu.be/blddmBQ8AAw playlist link:----https://www.youtube.com/watch?v=Ib5yH2HOPdE&list=PLwSTdlvOT9eenFsIhksF5PmBAIaCsAnTB
Views: 423603 Ncert Tutorial
ECONOMICS -Class 10 - NCERT - Chapter 3 - MONEY AND CREDIT [PART 1]
 
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in this video we are studying class 10th economics chapter 1 MONEY AND CREDIT and this is 1ST part of this series. NEXT video:- playlist link:-https://www.youtube.com/watch?v=uXjjmk0OZpc&list=PLwSTdlvOT9edF_mjhRuCfdogSHVAeR7sS
Views: 28347 Ncert Tutorial
class 9 NCERT history chapter 6-peasents and farmers [part 1]
 
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IN THIS video you will study ncert class 9 history chapter 6 peasents and farmers. and this is 1st video of this series. next video:----https://youtu.be/VbuVyYVrZW0 playlist link:----https://www.youtube.com/playlist?list=PLwSTdlvOT9efjQ6O2sd7N8EZQw180gzlm
Views: 51830 Ncert Tutorial
NCERT science class 10 CHAPTER 8 How do Organisms Reproduce|| spore formation || tissue culture  5
 
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Tissue culture In tissue culture, new plants are grown by removing tissue or separating cells from the growing tip of a plant. The cells are then placed in an artificial medium where they divide rapidly to form a small group of cells or callus. The callus is transferred to another medium containing hormones for growth and differentiation. The plantlets are then placed in the soil so that they can grow into mature plants. Using tissue culture, many plants can be grown from one parent in disease-free conditions. This technique is commonly used for ornamental plants.
Views: 48954 Ncert Tutorial
NCERT class 10 chapter 13 || Magnetic Effects of Electric Current || introduction part 1
 
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Compass needle is deflected on passing an electric current through a metallic conductor
Views: 54797 Ncert Tutorial
Class 10 HISTORY Chapter 7- print culture and modern world [PART 5] hindi explanation
 
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in this video we will study class 10 HISTORY Chapter 7 print culture and modern world and this is 5th part of this series. next video:--- previous video:------https://youtu.be/EAlQ9374xLQ playlist link----https://www.youtube.com/playlist?list=PLwSTdlvOT9eeVdx9dnmzu0pGbxXyTZD5W
Views: 25952 Ncert Tutorial
class 10 civics -chapter 7-Outcomes Of Democracy [part 1]
 
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In this video, we are going to study class 10 civics chapter 7 outcomes of democracy, and in this chapter, we will learn about the things which we get from democracy and what are the benefit of having democracy and how democracy performs on social front and how democracy performs on economic front and we will compare democratic government with non-democratic government. next video:-https://youtu.be/kMkqu80BALY playlist link:-https://www.youtube.com/playlist?list=PLwSTdlvOT9edpd3Ofi6rCZF0bZSpLha9J
Views: 12216 Ncert Tutorial
civics class 10: Challenges to Democracy-chapter 8 [Part 1]
 
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in this video, we will study class 10 political science chapter 8 Challenges to Democracy and in this chapter, we will study about challenges faced by democracy in our world. this video is part 1 of this series on this chapter. Next video:-https://youtu.be/-4nB84kpySQ Playlist link:-
Views: 8917 Ncert Tutorial
EXCRETION : NCERT class 10 chapter 6 || biology life processes ||part 18
 
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The biological process involved in the removal of these harmful metabolic wastes from the body is called excretion. The excretory system of human beings includes a pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Each kidney has large numbers of filtration units called nephrons
Views: 58252 Ncert Tutorial
class 9-history-NCERT-chapter 3 [part 9]
 
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IN THIS video you will study ncert class 9 history chapter 3 and this is 8th video of this series. previous video:---https://youtu.be/dUzIVS10o4E playlist link:----https://www.youtube.com/watch?v=Ib5yH2HOPdE&list=PLwSTdlvOT9eenFsIhksF5PmBAIaCsAnTB
Views: 41214 Ncert Tutorial
ECONOMICS -Class 9th- NCERT- Chapter 4- Food Security in India [PART 1]
 
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in this video we are going to learn economics chapter 4 food security in indiafor class 9. next video ---https://youtu.be/fKx24vIKMtY playlist link ---https://www.youtube.com/playlist?list=PLwSTdlvOT9ed_Ow7w60luAJmRgA2c6gVe
Views: 17231 Ncert Tutorial
class 9 NCERT history chapter 5 Pastoralists in the Modern World [part 1]
 
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IN THIS video you will study ncert class 9 history chapter 5 Pastoralists in the Modern World. and this is 1st video of this series. next video:---- playlist link:----
Views: 90495 Ncert Tutorial
Class 9 CIVICS/polity -Chapter 6 -NCERT - DEMOCRATIC RIGHTS  [PART 1]
 
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in this video we will study class 9 CIVICS/POLITY chapter 6 DEMOCRATIC RIGHTS and this is 1st part of this series. next video:--- playlist link----https://www.youtube.com/playlist?list=PLwSTdlvOT9eeWDSElHnBhr6Uj3JngW-b5
Views: 109035 Ncert Tutorial
Chapter 1 - Class IX - Part 2 - French Revolution
 
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in this video we are going to study class 9th history clapter 1 french Revolution and this is 1st video of this series. previous video :-https://www.youtube.com/watch?v=0WM5P3lsrXY next video:-https://youtu.be/L7pIcUVvE2E playylist lnk:-https://www.youtube.com/watch?v=0WM5P3lsrXY&list=PLwSTdlvOT9ecQm74hytPesbdare5waZWB
Views: 118879 Ncert Tutorial
Class 10 HISTORY Chapter 7- print culture and modern world [PART 1] hindi explanation
 
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in this video we will study class 10 HISTORY Chapter 7 print culture and modern world and this is 1ST part of this series. next video:---https://youtu.be/Sb7fvfEhdNY playlist link----https://www.youtube.com/playlist?list=PLwSTdlvOT9eeVdx9dnmzu0pGbxXyTZD5W
Views: 83554 Ncert Tutorial
Class 10th- ECONOMICS -NCERT- Chapter 1- DEVELOPMENT [PART 1]
 
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IN this video we are discussing the chapter 1 development of class 10, and this video is part 1 of series of this chapter. next video:-https://youtu.be/SYHrm5_4sZI playlist link:-https://www.youtube.com/playlist?list=PLwSTdlvOT9efHnoWkYFvamiIeuXYK2LCR
Views: 82553 Ncert Tutorial
Transport of food and other substances :NCERT class 10 chapter 6 : life processes  17
 
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the products of metabolic processes, particularly photosynthesis, are moved from leaves, where they are formed, to other parts of the plant. This transport of soluble products of photosynthesis is called translocation and it occurs in the part of the vascular tissue known as phloem. Besides the products of photosynthesis, the phloem transports amino acids and other substances. These substances are especially delivered to the storage organs of roots, fruits and seeds and to growing organs. The translocation of food and other substances takes place in the sieve tubes with the help of adjacent companion cells both in upward and downward directions. Unlike transport in xylem which can be largely explained by simple physical forces, the translocation in phloem is achieved by utilisingenergy. Material like sucrose is transferred into phloem tissue using energy from ATP. This increases the osmotic pressure of the tissue causing water to move into it. This pressure moves the material in the phloem to tissues which have less pressure. This allows the phloem to move material according to the plant’s needs. For example, in the spring, sugar stored in root or stem tissue would be transported to the buds which need energy to grow.
Views: 24741 Ncert Tutorial
NCERT\CBSE science class 9 chapter 2 part 12 || IS MATTER AROUND US PURE
 
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HOW CAN WE OBTAIN DIFFERENT GASES FROM AIR ?
Views: 1817 Ncert Tutorial
Fossils || CLASS 10 chapter 9 heredity and evolution part 17
 
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Fossils when organisms die, their bodies will decompose and be lost. But every once in a while, the body or at least some parts may be in an environment that does not let it decompose completely. If a dead insect gets caught in hot mud, for example, it will not decompose quickly, and the mud will eventually harden and retain the impression of the body parts of the insect. All such preserved traces of living organisms are called fossils. How do we know how old the fossils are? There are two components to this estimation. One is relative. If we dig into the earth and start finding fossils, it is reasonable to suppose that the fossils we find closer to the surface are more recent than the fossils we find in deeper layers. The second way of dating fossils is by detecting the ratios of different isotopes of the same element in the fossil material.
Views: 12435 Ncert Tutorial
ECONOMICS- Class 10- NCERT - Chapter 3 - MONEY AND CREDIT [PART 4]
 
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in this video we are studying class 10th economics chapter 1 MONEY AND CREDIT and this is 4th part of this series. previous video -https://youtu.be/wpgZKvmBggE NEXT video:- https://youtu.be/IPoU4VD_JRQ playlist link:-https://www.youtube.com/watch?v=uXjjmk0OZpc&list=PLwSTdlvOT9edF_mjhRuCfdogSHVAeR7sS
Views: 9692 Ncert Tutorial
class 9 science chapter 1 matter in our surroundings in hindi || physical nature of matter part 1
 
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MATTER IN OUR SURROUNDINGS subscribe our new channel link is given below- https://www.youtube.com/c/NCERTTUTORIAL2
Views: 14528 Ncert Tutorial
class 9 NCERT history chapter 6-peasents and farmers [part 3]
 
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IN THIS video you will study ncert class 9 history chapter 6 peasents and farmers. and this is 3rd video of this series. previous video:----https://youtu.be/VbuVyYVrZW0 next video:----https://youtu.be/VcOZKgmcNOU playlist link:----https://www.youtube.com/playlist?list=PLwSTdlvOT9efjQ6O2sd7N8EZQw180gzlm
Views: 24346 Ncert Tutorial
Class 10 NCERT CIVICS/POLITY - Chapter 2 - federalism [PART 1]
 
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in this video we will study class 10 CIVICS/POLITY chapter 2 federalism and this is 1st part of this series. next video:--- playlist link----https://www.youtube.com/playlist?list=PLwSTdlvOT9eeWyVrF_NfdB1SfvKJ0nayX
Views: 50000 Ncert Tutorial
Heredity and Evolution  NCERT science class 10  CHAPTER 9 || gene part 8
 
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How do these Traits get Expressed? A section of DNA that provides information for one protein is called the gene for that protein.
Views: 20871 Ncert Tutorial
1.1 budddhism(ancient india history)
 
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Hi friends, Here we are going to discuss some important questions related to buddhism.which is very important for competitive exams like ssc and others. These information that we are providing are very very useful for examination like
Views: 1243 Ncert Tutorial
power of accommodation of eye class 10 chapter 11 || eye and colourful world part 2
 
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Power of Accommodation The eye lens is composed of a fibrous, jelly-like material. Its curvature can be modified to some extent by the ciliary muscles. The change in the curvature of the eye lens can thus change its focal length. When the muscles are relaxed, the lens becomes thin. Thus, its focal length increases. This enables us to see distant objects clearly. When you are looking at objects closer to the eye, the ciliary muscles contract. This increases the curvature of the eye lens. The eye lens then becomes thicker. Consequently, the focal length of the eye lens decreases. This enables us to see nearby objects clearly. The ability of the eye lens to adjust its focal length is called accommodation. however, the focal length of the eye lens cannot be decreased below a certain minimum limit. Try to read a printed page by holding it very close to your eyes. You may see the image being blurred or feel strain in the eye. To see an object comfortably and distinctly, you must hold it at about 25 cm from the eyes. The minimum distance, at which objects can be seen most distinctly without strain, is called the least distance of distinct vision. It is also called the near point of the eye. For a young adult with normal vision, the near point is about 25 cm. The farthest point upto which the eye can see objects clearly is called the far point of the eye. It is infinity for a normal eye. You may= note here a normal eye can see objects clearly that are between 25 cm and infinity. Sometimes, the crystalline lens of people at old age becomes milky and cloudy. This condition is called cataract. This causes partial or complete loss of vision. It is possible to restore vision through a cataract surgery.
Views: 5933 Ncert Tutorial
NCERT- geography- class 10 chapter 3- WATER RESOURCES [PART 1]
 
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In This video we are going to discuss class 10 chapter 3 water resources. And this video is first part of series of this chapter. next video:-https://youtu.be/VwSuOoymMYY Playlist Link:- https://www.youtube.com/playlist?list=PLwSTdlvOT9edLym2hzm6DHTAjtukrUS2I
Views: 31916 Ncert Tutorial