Meristematic tissue is the plant tissue that has the ability to divide actively throughout its life.

The meristematic tissue is of the following types:

Meristematic Tissue On the basis of Origin

Promeristem

• The earliest and youngest meristematic tissue.

• It originates from the embryo.

• The primary meristem arises from the promeristem.

• It is found in the root and the shoot tips.

Primary Meristem

• It arises from the promeristem.

• Cells divide actively.

• It is present below the promeristem and forms the permanent tissue.

Secondary Meristem

• It originates from the primary meristem.

• The permanent tissue forms from the secondary meristem.

Meristematic Tissue On the Basis of Position

Apical Meristem

• These are present at the tips of the roots and shoots and helps in the increase of the height of the plants.

• Various cell divisions facilitate the growth of the cells in the roots and shoots and help in cellular enlargement.

• Apical meristem is divided into-promeristem zone, which contains actively dividing cells, and the meristematic zone, which contains protoderm, procambium and ground meristem.

Intercalary Meristem

• It is located in the leaves and internodes at the intercalary position.

• These help to increase the length of the internode.

• It is found in grass, monocots and pines.

• It is a part of apical meristem and adds to the height of the plant.

Lateral Meristem

• It is located in the stems and roots on the lateral side.

• It increases the thickness of the plant.

• Vascular cambium and cork cambium are the two lateral meristems.

• These divide preclinically or radially and give rise to secondary permanent tissues.

Meristematic Tissue On the Basis of Function

Protoderm

• It is the outermost plant tissue and forms the epidermis.

• It protects the plants from any mechanical shocks.

Procambium

• It is the innermost tissue and gives rise to xylem and phloem.

• It helps in the transport of water and nutrients to different parts of the plant.

Ground Meristem

• The cells are large with thick walls.

• It forms the cortex, pericycle and pith.

Dɪғɪɴɪᴛɪᴏɴ- ᴀ formative plant tissue usually made up of small cells capable of dividing indefinitely and giving rise to similar cells or to cells that differentiate to produce the definitive tissues and organs. ????? ? ???'? ???? ? ???? ??????? ?? ?? ???'? ?????? ??? ??? ?? ???? ???!

Every integer is started from 0,and it can be both positive or negative. But whole numbers are started from 0 to positive numbers,, hence whole numbers can't be negative.So, It would be wrong to say that Every integer is a whole number. Therefore, Every integer is not a whole number..

Yes, every integer is a rational number because rational number basically numbers that have presented in fraction and integer numbers are also be presented in form of fraction. Rational numbers are represent in form of fraction as a / b where a is known as numerator and b is known as denominator.

Step 1:- Drag a move block to the script area Step 2:- Drag a turn block to the script area and hold it just under the move block without lifting your finger form the mouse button Step 3:- Let go of the mouse

Thanks

 the function of the heart.

Answer:

The heart is an organ which beats continuously to act as a pump for the transport of blood, which carries other substances with it. The human heart is divided into four chambers. The upper two chambers are called right and left atrium and the lower two chambers are called the right and left ventricles. Right atrium receives carbon dioxide-rich blood from the body. Blood from right atrium enters the right ventricle, which contracts and pumps the blood to the lungs. On the other hand, oxygen-rich blood from the lungs returns to the left atrium. From the left atrium, blood enters left ventricle. Left ventricle contracts and pumps the blood to all parts of the body. Hence, the rhythmic contraction and expansion of various chambers of the heart maintains the transport of oxygen to all parts of the body.

My question chapter 9.

Make a project on topic ram mandir or muslim and hindu vivad

Some of the important applications of adsorption are given below:

1) In gas masks:

Activated charcoal or a mixture of adsorbents is generally used in gas masks to adsorb poisonous and toxic gases from air.

These masks are commonly used by the miners because there are poisonous gases like CO, CH₄ etc. in the atmosphere in the coal mines. Therefore, these masks help to purify the air for breathing.

2) In dyeing of cloth:

Mordants such as alums are used in dyeing of cloth.They adsorb the dye particles which, otherwise, do not stick to the cloth.

3) In Dehumidizers for control of humidity:

Silica and aluminium gels are commonly used to adsorb humidity or moisture from air. 

4) Removal of colouring matter from solutions:

Many substances such sugar, juice and vegetable oils are coloured due to the presence of impurities.They can be decolourised by placing in contact with adsorbents like activated charcoal or fuller’s earth. This method is used in the manufacture of cane sugar. 

5) Heterogeneous catalysis:

Adsorption of reactants on the solid surface of catalysts increases the rate of reaction. The metals such as Fe, Ni, Pt, Pd, etc, are used in the manufacturing process.

Manufacture of ammonia using iron as catalyst (Haber process), manufacture of sulphuric acid by contact process and use of finely divided nickel in the hydrogenation of oils are excellent examples of heterogeneous catalysis.

Consider a ring of radius 'a' which carries uniformly distributed positive total charge Q. 




To find: electric field due to a ring at a point P lying at a distance x from its centre along the central axis perpendicular to the plane of the ring.
 

As the charge is distributed uniformly over the ring, the charge density over the ring is, 

                                  
The perpendicular component of electric field due to charge on the ring along the x-axis cancels each other out.

As there is same charge on both sides of the ring, the magnitude of the electric field at P due to the segment of charge dQ is given by, 
 

dE = k_e 
E_x =  

   

1. At the centre (X = 0) , electric field is zero. 

2. When x>> a, a can be neglected in the denominator. 

Therefore, 

 

Kyunki sare bacche badlu ko badlu kaka kehte thei

 

 बचपन में लेखक अपने मामा के गाँव चाव से इसलिए जाता था क्योंकि लेखक के मामा के गाँव में लाख की चूड़ियाँ बनाने वाला कारीगर बदलू रहता था। लेखक को बदलू काका से अत्यधिक लगाव था। वह लेखक को ढेर सारी लाख की रंग-बिरंगी गोलियाँ देता था इसलिए लेखक अपने मामा के गाँव चाव से जाता था।
गाँव के सभी लोग बदलू को ‘बदलू काका’ कहकर बुलाते थे इस कारण लेखक भी ‘बदलू मामा’ न कहकर ‘बदलू काका’ कहता था।

Bhatti me aag jalane me

How I can revise for my test

शिक्षा या ज्ञान प्राप्त करना हर व्यक्ति का मूलभूत अधिकार है और अच्छी शिक्षा देश के प्रत्येक नागरिक को मिलना ही चाहिए। शिक्षा ही व्यक्ति का संपूर्ण विकास कर सकती हैं। उसके बौद्धिक , मानसिक व आर्थिक स्तर को ऊंचा कर सकती हैं। उसके सोचने समझने की शक्ति का विकास कर सकती हैं।

अच्छी शिक्षा हासिल करके ही अच्छे एवं सुरक्षित भविष्य की नींव डाली जा सकती है। इसीलिए  एक सुरक्षित भविष्य के लिए प्रत्येक व्यक्ति को अच्छी शिक्षा लेना अनिवार्य है। और ऑनलाइन शिक्षा इसमें महत्वपूर्ण भूमिका निभा रही है। ऑनलाइन शिक्षा से कई फायदे हैं। 

ऑनलाइन शिक्षा घर बैठे-बैठे इंटरनेट के माध्यम से मिलने वाली शिक्षा है।इसलिए यह शिक्षा विद्यार्थी न सिर्फ अपने देश से बल्कि विदेशों की शिक्षण संस्थाओं से भी हासिल कर सकते हैं।

ऑनलाइन शिक्षा व्यक्ति घर बैठे-बैठे हासिल कर सकता है। जिससे विद्यार्थियों के शिक्षण संस्थाओं , कोचिंग संस्थाओं या स्कूलों में जाने वाले समय की बचत होती है। साथ ही साथ यात्रा में लगने वाले पैसे की भी बचत हो जाती हैं।

छात्र अपने समय व सुविधा के हिसाब से ऑनलाइन क्लासेस ले सकते हैं।और शिक्षक द्वारा दी जाने वाली ऑनलाइन क्लास की रिकॉर्डिंग भी की जा सकती हैं। ऐसे में अगर किसी विद्यार्थी को ऑनलाइन क्लास के वक्त किसी विषय से संबंधित कुछ टॉपिक समझ में ना आए। तो वह दुबारा रिकॉर्डिंग सुन कर अपनी शंकाओं को दूर कर सकता है।

यदि किसी विद्यार्थी को किसी विषय से संबंधित कोई कठिनाई हो रही हो या कोई प्रश्न समझ में नहीं आ रहा हो। ऐसे में बच्चे अपने शिक्षकों से अपने घर बैठे बैठे ऑनलाइन क्लासेस के माध्यम से दोबारा प्रश्न पूछ सकता है। 

न सिर्फ स्कूल , कॉलेज जाने वाले बच्चे बल्कि ऐसे विद्यार्थी जो प्रतियोगिता परीक्षाओं की तैयारियां कर रहे हैं। उनको भी ऑनलाइन कोचिंग की सुविधा प्राप्त हो रही है। अब वो भी घर बैठे बैठे अपनी आने वाले प्रतियोगिता परीक्षाओं की तैयारी आराम से कर सकते हैं।

ऑनलाइन शिक्षा से घर बैठे बैठे पढ़ने की सुविधा तो मिलती ही है। साथ में समय पैसे दोनों की बचत होती है। 

ऑनलाइन पढ़ाई में अनेक ऐसे ऐप हैं जैसे गूगल अर्थ , वीडियो , चित्र , एनिमेटेड चित्र , गूगल मैप्स।  जिनका प्रयोग कर पढ़ाई को और भी दिलचस्प बनाया जा सकता है। इसमें शिक्षक व विद्यार्थी एक दूसरे को पीडीएफ फाइल , वेब लिंग , वीडियो बनाकर भी भेज सकते हैं।

कई कंपनीयों द्वारा लर्निंग एप्स (Learning Apps ) भी बनाए गए हैं। जैसे मेरीटनेशन , बाईजू टॉपर्स आदि। ये लगभग कक्षा 1 से लेकर कक्षा 12 तक के सीबीएसई के पाठ्यक्रम को ऑनलाइन प्रदान करते हैं। और इनके द्वारा बनाए गए एप्स में शिक्षकों का पढ़ाने का तरीका इतना बेहतरीन है कि बच्चे आराम से उस विषय को समझ जाते हैं।

इनकी सबसे बड़ी खासियत यह है कि ये अपने ऐप से जुड़ने वाले बच्चों से पर्सनली सम्पर्क में रहते हैं। और कोई समस्या होने पर इनके टीचर बच्चों की समस्याओं का समाधान तुरंत करते हैं। 

यहां तक कि कुकिंग , सिलाई , कढ़ाई , क्राफ्ट , ड्राइंग , पेंटिंग आदि से संबंधित क्लासेज भी अब ऑनलाइन दी जा रही है। 

i hope this will help you keep my friend

a=float(input("enter the cost:"))
if a>500:
b=a/10
c=12.5/100*a
d=a-b+c
print(d)
else:
c=12.5/100*a
print(a+c)

a=float(input("enter the cost:")) if a>500: b=a/10 c=12.5/100*a d=a-b+c print(d) else: c=12.5/100*a print(a+c)

Answer:

 

If there is decrease in acceleration, it is called retardation. This means, rate of decrease in velocity is called retardation.A positive sign of the magnitude of acceleration shows increase in velocity and a negative sign show decrease in velocity.

CO is isoelectronic with NO+ and N2.  CO has 14 electrons, 8 from oxygen and 6 from carbon. NO has 15 electrons 8 from oxygen and 7 from nitogen. But, as it becomes NO+, it loses an electron and the number of electrons is 14. Similarly, N2 has 14 electrons, 7 from each of the nitrogen atoms.

☞︎︎︎सुमति मंगोल जाति का एक बौद्ध भिक्षु था। उसका वास्तविक नाम था - लोबज़ंग शेख। इसका अर्थ होता है - 'सुमति प्रज्ञं'। अतः लेखक ने उसे 'सुमति' नाम से पुकारा। यह आदमी लेखक को ल्ह्यासा की यात्रा के दौरान मिल गया था।

102

The factors which influence the adsorption of a gas on a solid are as given below:
(1) Nature of the gas
(2) Nature of adsorbent
(3) Specific area of adsorbent
(4) Effect of temperature
(5) Effect of pressure
(6) Activation of adsorbent

False because whole no. start 0 to infinitive and 0 is not a natural no.

Answer: true , because natural number is starte on no. 1 to infinity but whole no. is started on 0 to infinity so it is true .

True

Direct and indirect

25934

Calculator he ya nahi

537035

Sᴏʀʀʏ ɪᴛ ɢᴏᴛ ᴍɪxᴇᴅ ᴜᴘ?....ғᴏʀᴍᴀᴛ ɪsɴ'ᴛ ᴛʜᴇʀᴇ..

Write a Report for your school magazine describing a Cultural Fest held in your school in which various schools of your city took part.   Ans: REPORT CULTURAL FEST -Robin Dey  24 October 2014 On 22/ 10/2014, a colorful and memorable Cultural Fest was organized in our school. This event was whole day long and was held in the auditorium of our school. In this mega event, many schools from our city took part. The grand show commenced by the arrival of various teams from schools. Then the Chief Guest, the District Collector ,of our District, arrived with his wife. There was a colourful welcome followed by lighting of the lamp. It was accompanied by a melodious Saraswati Vandana , hailing the goddess of knowledge and wisdom. It was followed by a welcome speech given by the Principal of our school. Then there was bouquet presentation to the invited guests and the grand event began. It was a truly mesmerizing show as the teams from various schools presented many programmes . there was singing, dancing, poetry recitation, skits, mimicry, mono act shows, classical and modern combination of several foot tapping numbers. Everyone sat glued to the show. The Chief Guest praised the entire event a lot. He guided with his inspirational words and inspired to do better . It was followed by the announcement of the winning team , ABC School of our city. The team from our school bagged second position and everyone complimented one another. It was followed by aformal vote of thanks and the event concluded.  We really enjoyed a lot and dispersed with a sincere hope that such mega events should be organized time and again giving the students a chance to display their talents.

When a solution of magnesium salts is combined with alkaline water it instigates precipitation of solid magnesium hydroxide. The reaction is as follows:

Mg²⁺ + 2 OH⁻ → Mg(OH)₂

Commercially it is produced by treating lime and seawater. Approximately one ton of magnesium hydroxide is obtained from 600 m³ of seawater. Calcium hydroxide is more soluble in magnesium hydroxide therefore Mg(OH)₂ precipitates as a solid. The reaction is as follows:

MgO + H2O → Mg(OH)₂

Statement: In a right angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Given: ABC is a triangle in which ∠ABC=90^∘

Construction: Draw BD⊥AC.

Proof:

In △ADB and △ABC

∠A=∠A              [Common angle]

∠ADB=∠ABC      [Each 90∘]

△ADB∼△ABC    [A−A Criteria]

So, AD​/AB = AB/AC​

Now, AB²=AD×AC             ..........(1)

Similarly,

BC²=CD×AC               ..........(2)

Adding equations (1) and (2) we get,

AB²+BC²=AD×AC+CD×AC

=AC(AD+CD)

=AC×AC

∴AB²+BC²=AC² [hence proved]

• Every loan agreement specifies an interest rate which the borrower must pay to the lender along with repayment of the principal.
• In addition, lender may demand collateral, i.e., an asset that the borrower owns and uses this as a guarantee until the loan is repaid.
• If the borrower fails to repay the loan, the lender has the right to sell the collateral to obtain payment.
• Terms of credit comprise interest rate, collateral and documentation requirement, and the mode of repayment.
  *The terms of credit vary substantially from one credit arrangement to another. They may vary depending on the nature of the lender and the borrower.

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