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    • Posted by Khushi Arora 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 4 years, 1 month ago

    Sl. No. Differentiating Property Distance Displacement
    1 Definition The complete length of the path between any two points is called distance. Displacement is the direct length between any two points when measured along the minimum path between them.
    2 Denotation d s
    3 Direction Consideration To calculate distance, the direction is not considered. To calculate displacement, the direction is taken into consideration.
    4 Quantity Distance is a scalar quantity as it only depends upon the magnitude and not the direction. Displacement is a vector quantity as it depends upon both magnitude and direction.
    5 Route Information Distance gives the detailed route information that is followed while travelling from one point to another. As displacement refers to the shortest path, it does not give complete information on the route.

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    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 4 answers

    Palak Pandey 4 years, 1 month ago

    Are u a student or teacher ??? thanks

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    musca domestica is the scientific name of housefly. apis mellifera is the correct one.

    2Thank You

    Palak Pandey 4 years, 1 month ago

    I think bee's scientific name is musca domestica

    3Thank You

    Arsh Tiwari 4 years, 1 month ago

    mango- magnifera indica . dog- canis familieris. bee-apis mellifera. your answer...

    1Thank You

    ANSWER

    • Posted by Diya Dahal 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Arsh Tiwari 4 years, 1 month ago

    because it is based on haploid division of cell.

    1Thank You

    ANSWER

    • Posted by Ansh Pal Pal 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Arsh Tiwari 4 years, 1 month ago

    this observation shows matter have space between them...

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    • Posted by Khushi Arora 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Arsh Tiwari 4 years, 1 month ago

    to identity distance and displacement by short trick in examination is if the speed is given then it is distance and if velocity is given then it is displacement.. hope this will help you in your examination.

    1Thank You

    Khushi Arora 4 years, 1 month ago

    And also pls tell that how to identify distance and displacement

    1Thank You

    Arsh Tiwari 4 years, 1 month ago

    formula of motion.. speed = st average speed= total distance/ total time taken. velocity =st. average velocity =( u+v) /2 displacement = average velocity*time taken Acceleration =(v-u)/t kinematical equation.. (i)v=u+at. (ii)s=ut+1/2 ut square. (iii)2as=v sq.- u sq. s- displacement v- final velocity/ speed t- time u- initial velocity a- acceleration. hope this will helpful for you.

    1Thank You

    ANSWER

    • Posted by Ishika Vats 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Palak Pandey 4 years, 1 month ago

    1.1

    2Thank You

    ANSWER

    • Posted by Khushi Arora 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Suhani Rai 4 years, 1 month ago

    Ribosomes link amino acids together in the order specified by the codons of messenger RNA (mRNA) molecules to form polypeptide chains. Ribosomes consist of twomajor components: the small and large ribosomal subunits.

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    Ribosomes is a small round body present in rough endoplasmic reticulum. it is a platform for the protein synthesis. it also contain ribonuclicacid RNA.. Hope this helps you.

    3Thank You

    ANSWER

    • Posted by Mukul Kumar 😎 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 4 years, 1 month ago

    The cytoplasmic chromosome of eucaryotes are 80 S. They occur inside the cytoplasm of eukaryotes either freely or attached to ER. The ribosomes are large in size with a length of (300-340 Angstrom) and breadth (20­0-240 Angstrom). The two subunits of 80S ribosomes are 60S and 40S. A tunnel occurs between the two subunits for passage of mRNA. The large subunit has a groove for pushing out the newly synthesized polypeptide. 80S ribosomes are synthesized inside the nucleolus. 80S ribosomes do not become functional inside the nucleous. Their subunits come out of the nucleus and become operational in cytoplasm. 40S subunit of 80S ribosome contains 33 protein molecules and a single 18S rRNA. 60S subunit has 40 protein molecules and three types of rRNAs- 28S, 5.8S and 5S.

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    • Posted by Acbu Roy 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 5 answers

    Acbu Roy 4 years, 1 month ago

    Thanks for replying

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    In this question option B is more likely to correct .i.e. it acts on different bodies in different direction . hope this will helpful to you...

    3Thank You

    Palak Pandey 4 years, 1 month ago

    Am I correct?

    3Thank You

    Palak Pandey 4 years, 1 month ago

    2

    3Thank You

    Acbu Roy 4 years, 1 month ago

    Pls tell

    1Thank You

    ANSWER

    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 5 answers

    Tapan Kumar Sahu 4 years, 1 month ago

    Meter

    0Thank You

    Mukul Kumar 😎 4 years, 1 month ago

    One light year is the distance travelled by light in one year Distance =speed×time Therefore the unit of light year ( distance) is metre 1 light year = 9.46×10^15 m

    1Thank You

    Arsh Tiwari 4 years, 1 month ago

    metre.. is the unit of light year.

    2Thank You

    Palak Pandey 4 years, 1 month ago

    I am asking about unit

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    9.46×10 to the power 15 metre

    1Thank You

    ANSWER

    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Arsh Tiwari 4 years, 1 month ago

    there are many types of corona test popular all over the world.. one of them which is tested in india is RT-PCR. (reverse transcription polymerase chain reaction.).. hope this was helpful...

    1Thank You

    ANSWER

    • Posted by Amit Baroi 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Anjali Basumatary 4 years, 1 month ago

    Al2(so4)3 chemical formula of aluminium sulphite

    1Thank You

    ANSWER

    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 5 answers

    Vidhya Lakshmi 4 years, 1 month ago

    Max Knoll and Ernst Ruska in 1931

    0Thank You

    Sarita Panda 4 years, 1 month ago

    1940

    0Thank You

    Palak Pandey 4 years, 1 month ago

    I am also not sure in year,but I think it may 1932

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    max knoll designed the first electron microscope in 1930.. hope it will correct..

    0Thank You

    Anjali Basumatary 4 years, 1 month ago

    Max knoll and Ernst Ruska in 1931

    0Thank You

    ANSWER

    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 4 answers

    Suhani Rai 4 years, 1 month ago

    The basis for vaccination began in 1796 when an English doctor named Edward Jenner observed that milkmaids who had gotten cowpox did not show any symptoms of smallpox after variolation. The first experiment to test this theory involved milkmaid Sarah Nelmes and James Phipps, the 9 year-old son of Jenner's gardener

    0Thank You

    Vidhya Lakshmi 4 years, 1 month ago

    Edward jenner

    0Thank You

    Anjali Basumatary 4 years, 1 month ago

    Edward Jenner in 1796

    1Thank You

    Amit Baroi 4 years, 1 month ago

    Edward jenner

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    • Posted by Anjali Basumatary 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Arsh Tiwari 4 years, 1 month ago

    because they are complete octed and do not reacts with others to form compound in standard tempereature hence they are called monoatomic molecules

    1Thank You

    Yogita Ingle 4 years, 1 month ago

    Monoatomic:- The elements that have only one atom in molecule are called monoatomic elements. They are stable. Example:- Ne,Ar all are Noble gases.

    1Thank You

    Palak Pandey 4 years, 1 month ago

    (Neon,helium,argan) I am not sure so plzz thumbs up ??if I am right

    1Thank You

    ANSWER

    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 4 answers

    Khushi Arora 4 years, 1 month ago

    Momentum-kgm/s

    0Thank You

    Vidhya Lakshmi 4 years, 1 month ago

    Kg m/s

    1Thank You

    Yogita Ingle 4 years, 1 month ago

    Momentum = Mass X Velocity

    p = mv

    Unit of momentum is given as:

    SI unit kg.m.s-1

    1Thank You

    Arsh Tiwari 4 years, 1 month ago

    kg m/s .. derived by :- momentum= mass * velocity. so momentum = kg*m/s... or; momentum =kg m/s...

    1Thank You

    ANSWER

    • Posted by Akriti Singh 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 5 answers

    Arsh Tiwari 4 years, 1 month ago

    it is not average of distance because average = sum of object/no of object..

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    sum of the distance traversed is called total distance travel..

    0Thank You

    Palak Pandey 4 years, 1 month ago

    Akriti Singh is my classmate can u tell me where do u from??

    0Thank You

    Palak Pandey 4 years, 1 month ago

    We can understand it with example like object A move from rest of motion,he walked 4km in 1 hour and in the 2 hour he walked 6km what is the total distance travel ??-ANS- 4km+6km=10km

    0Thank You

    Palak Pandey 4 years, 1 month ago

    Average of distance

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    • Posted by Samiksha Sharma 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 5 answers

    Adhya S 4 years, 1 month ago

    Small particles called atom

    1Thank You

    Vansh Kumar 4 years, 1 month ago

    Matter is made up of atoms

    0Thank You

    Shambhavi Singh 4 years, 1 month ago

    Small particles

    2Thank You

    Ruchita Patil 4 years, 1 month ago

    Called atoms

    1Thank You

    Ruchita Patil 4 years, 1 month ago

    Small particles

    1Thank You

    ANSWER

    • Posted by Arsh Tiwari 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 5 answers

    Sandeya Kazal Chettri 4 years, 1 month ago

    RNA is the ans

    0Thank You

    Arsh Tiwari 4 years, 1 month ago

    yes RNA is correct answer. answer of all of you guys are appreciated.

    1Thank You

    Khushi Arora 4 years, 1 month ago

    Rna

    1Thank You

    Anjali Basumatary 4 years, 1 month ago

    RNA

    1Thank You

    Amit Baroi 4 years, 1 month ago

    RNA

    1Thank You

    ANSWER

    • Posted by Arsh Tiwari 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Mukul Kumar 😎 4 years, 1 month ago

    Plant cell

    1Thank You

    ANSWER

    • Posted by Saniya Sagar 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 4 years, 1 month ago

    a n s w e r 
    The electrons revolve around the nucleus in fixed circular paths called energy levels or shells.The energy levels or shells are represented in two ways:
    a) K,L,M,N…….
    b) 1,2,3,4,5……

    1Thank You

    ANSWER

    • Posted by Anu T.S 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 4 years, 1 month ago

    Epithelial Tissue

    The covering or protective tissues in the animal body are epithelial tissues. Epithelium covers most organs and cavities within the body. It also forms a barrier to keep different body systems separate. The skin, the lining of the mouth, the lining of blood vessels, lung alveoli and kidney tubules are all made of epithelial tissue. Epithelial tissue cells are tightly packed and form a continuous sheet. They have only a small amount of cementing material between them and almost no intercellular spaces. Obviously, anything entering or leaving the body must cross at least one layer of epithelium. As a result, the permeability of the cells of various epithelia play an important role in regulating the exchange of materials between the body and the external environment and also between different parts of the body. Regardless of the type, all epithelium is usually separated from the underlying tissue by an extracellular fibrous basement membrane.

    Different epithelia  show differing structures that correlate with their unique functions. For example, in cells lining blood vessels or lung alveoli, where transportation of substances occurs through a selectively permeable surface, there is a simple flat kind of epithelium. This is called the simple squamous epithelium. Simple squamous epithelial cells are extremely thin and flat and form a delicate lining. The oesophagus and the lining of the mouth are also covered with squamous epithelium. The skin, which protects the body, is also made of squamous epithelium. Skin epithelial cells are arranged in many layers to prevent wear and tear. Since they are arranged in a pattern of layers, the epithelium is called stratified squamous epithelium.

    Where absorption and secretion occur, as in the inner lining of the intestine, tall epithelial cells are present. This columnar (meaning �pillar-like�) epithelium facilitates movement across the epithelial barrier. In the respiratory tract, the columnar epithelial tissue also has cilia, which are hair-like projections on the outer surfaces of epithelial cells. These cilia can move, and their movement pushes the mucus forward to clear it. This type of epithelium is thus ciliated columnar epithelium.

    Cuboidal epithelium (with cube-shaped cells) forms the lining of kidney tubules and ducts of salivary glands, where it provides mechanical support. Epithelial cells often acquire additional specialisation as gland cells, which can secrete substances at the epithelial surface. Sometimes a portion of the epithelial tissue folds inward, and a multicellular gland is formed. This is glandular epithelium.

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    • Posted by Palak Pandey 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 4 answers

    Suhani Rai 4 years, 1 month ago

    4,5-Bis(hydroxymethyl)-2-methylpyridin-3-ol

    0Thank You

    Vidhya Lakshmi 4 years, 1 month ago

    Pyridoxine

    0Thank You

    Yogita Ingle 4 years, 1 month ago

    Vitamin B6          (Water-soluble)  Scientific name : Pyridoxine Food Sources: Pork, chicken, fish, bread, wholegrain cereals, eggs, vegetables, soya beans, etc.

    1Thank You

    Мυѕкαи ? 4 years, 1 month ago

    pyridoxine I hope it helped live you sis for asking such an interesting question?????

    1Thank You

    ANSWER

    • Posted by Utkarsh Dhiman 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 4 years, 1 month ago

    Particulars Heat Temperature
    Definition The heat of an object is the total energy of all the molecular motion inside that object. Temperature is the measure of the thermal energy or average heat of the molecules in a substance.
    SI Unit Joule Kelvin
    Unit Joules, Calories Fahrenheit, Celsius, Kelvin
    Symbol Q T
    Particles It’s a measure of the number of atoms multiplied by the energy possessed by each atom. It is like a level which determines the direction in which the heat will flow. It is related to how fast the molecule within a substance are moving.
    Ability to do Work It is has the ability to do work It can be used to measure the degree of heat.

    1Thank You

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    • Posted by Rainy Singh 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Deepanshu Singh 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Tamanna Patel 4 years, 1 month ago

    No

    0Thank You

    Ash Greninja 4 years, 1 month ago

    You can use Google meet it is easy to use and it is best and not harmful too. I recommend you that?

    0Thank You

    Мυѕкαи ? 4 years, 1 month ago

    Actually zoom is hacked many time that is why it is got harmful so now we are having class on Microsoft teams,I recommend you to try that one very easy and lovely app to use.?

    0Thank You

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    • Posted by Varun Mishra 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Krishnam Sarda 4 years, 1 month ago

    It states that displacement can be more or equal to distance but it can never be less than distance

    0Thank You

    Varun Mishra 4 years, 1 month ago

    Meaning of this full sentence

    1Thank You

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    • Posted by Rohan Patil 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Rohan Patil 4 years, 1 month ago

    plźzzzzzz

    1Thank You

    Rohan Patil 4 years, 1 month ago

    plz answer.

    1Thank You

    ANSWER

    • Posted by Aman Mishra 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Мυѕкαи ? 4 years, 1 month ago

    Search this on chrome for answers

    0Thank You

    Мυѕкαи ? 4 years, 1 month ago

    http://embedded try it bro

    0Thank You

    ANSWER

    • Posted by Pradeep Mehta 4 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Sayantika Malobika 4 years, 1 month ago

    Each cell of nervous tissue is called a neuron or a nerve cell. Based on the roles of a neuron it can be divided into three main types. They are the sensory neuron, motor neuron, and interneuron. The basic functions of a neuron are to receive signals or information, communicate signals to the target cells such as the glands, integrate or disintegrate the incoming signals.

    3Thank You

    Pradeep Mehta 4 years, 1 month ago

    Explain its structure and function

    2Thank You

    Vidhya Lakshmi 4 years, 1 month ago

    Each cell of nervous tissue is called neuron or nerve cell.

    3Thank You

    ANSWER

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