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    • Posted by Aanchal Jaiswal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    The three main characteristics used for a hierarchical classification are:

    1. Complexity of cell structure, i.e., type of cell—prokaryotic or eukaryotic. As a eukaryotic cell has membrane-bound organelles including a nucleus, the cellular processes can be carried out efficiently in isolation from other cells. On the other hand, the organisms without a clearly demarcated nucleus and other organelles need to have very different biochemical pathways. This would naturally have a great effect on every aspect of cell design. Moreover, the nucleated cells would have the capacity to participate in making a multicellular organism as they are capable of taking up specialised functions.
    2. Body organisation, i.e., whether the organism is unicellular or multicellular. In a eukaryotic multicellular organism, cells that group together to form a single organism use the principle of division of labour. In this type of body design, all cells would not be identical. Rather, groups of cells will carry out specialised functions. Thus, this makes a very basic distinction in the body designs of organisms. As a result, an amoeba will be very different in its body design from a fish.
    3. Mode of nutrition: autotrophic or heterotrophic. Plants make their own food while animals depend on plants or other animals for their food. For this they will definitely have different body design.

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    • Posted by Samriti Kashyap 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Khushi Boora 7 years, 2 months ago

    Because it occurs only in wall of heart.

    1Thank You

    ANSWER

    • Posted by Tanishka (Tanu) Mahale 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Saniya Parwez 7 years, 2 months ago

    Sound is a form of energy which enables us to hear. Thrust is the perpendicular force acting on the surface of any object.

    2Thank You

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    • Posted by .Yogitha . Dhanaji 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by .Yogitha . Dhanaji 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Hema Gupta 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    Newton's Third Law of Motion: For every action, there is an equal and opposite reaction. This statement means that in every interaction, there are two forces acting on the interacting objects. The size of the force on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object.

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    • Posted by Jeet Rawat 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Aayush Sharma 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 2 months ago

    Let the total distance  be  2x .

    in first  half journey,

    in second  halg  journey,

    0Thank You

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    • Posted by Jaat Bhai 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Jaat Bhai 7 years, 2 months ago

    Yes, I use mCent

    1Thank You

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    • Posted by Abhinaya Biju 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sameer Pandey 7 years, 2 months ago

    NaCl - salt,NH3 - ammonia,MgO - magnesium oxide,NO2 - nitrite,NO3 - nitrate

    2Thank You

    Jeet Rawat 7 years, 2 months ago

    O3 ozone layer Co2 carbon dioxide H2o hydrogen oxide

    2Thank You

    ANSWER

    • Posted by Abhishek Gupta 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 2 months ago

    CFCs (Chloro Fluoro Carbons) are the chemicals used in air conditioners and refrigerators which cause destruction of ozone layer present in the stratosphere of the atmosphere.
    CFCs form active chlorine in the presence of UV radiations. Radicals produced are Cl and ClO. These radicals destroy ozone by converting it into oxygen. Oxygen just is a gas which remains in the atmosphere.

    2Thank You

    Pankaj Kumar 7 years, 2 months ago

    The cfcs are the gas present in refrigerator ac etc.

    1Thank You

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    • Posted by Rishita Mukherjee 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 2 months ago

    Amphibians are those organisms which live on both land and in water. Bryophytes are called amphibians of the plant kingdom because these plants though live in soil but they need water for sexual reproduction. The sperm of bryophyte (antherozoids) are flagellate and need water to swim to the eggs. In other words, as these plants need water for reproduction unlike other plants, they are called as amphibians. 

    2Thank You

    Vaish Shukla 7 years, 2 months ago

    Because these Plants live in soil but they need water for sexual reproduction .

    1Thank You

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    • Posted by Priyansh Khatri 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    Characters Thallophyta Bryophyta Pteridophyta
    Habitat Mostly aquatic (fresh and marine- both forms exist). Terrestrial, present in damp places. Terrestrial, present in damp and shady places.
    Body Structure Body is undivided in the form of thallus. Body is flat, green thallus (liverworts) or leafy and erect (mosses) Plant body is erect and rigid.
    True roots, stems and leaves Absent > Absent Present
    Vascular system Absent Absent Present
    *** organs Single-celled Multicellular Multicellular and jacketed in sterile cells.

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    • Posted by .Yogitha . Dhanaji 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    .Yogitha . Dhanaji 7 years, 2 months ago

    Malayle ala chinse

    1Thank You

    Abhinaya Biju 7 years, 2 months ago

    Malayalee aano

    1Thank You

    ANSWER

    • Posted by .Yogitha . Dhanaji 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Jaat Bhai 7 years, 2 months ago

    Australia cricket team image AUS*- 288/5 (50.0) India cricket team image IND- Yet to bat Innings Break · Australia won the toss and elected to bat

    2Thank You

    Jaat Bhai 7 years, 2 months ago

    Australia cricket team image AUS* 288/5 (50.0) India cricket team image IND Yet to bat Innings Break · Australia won the toss and elected to batting.

    2Thank You

    ANSWER

    • Posted by Jansi Sabharwal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 2 months ago

    • Phanerogams or spermatophyta are the most advanced type of plants bearing seeds.
    • They have roots, stems, leaves and flowers.
    • They include gymnosperms and angiosperms.

    1Thank You

    Radheshyam Kailashiya 7 years, 2 months ago

    Those plants who produce seeds

    0Thank You

    ANSWER

    • Posted by Change *Wõrld*# As Yöu Çäñ 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Abi Malu 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Khushi Boora 7 years, 2 months ago

    79/80

    0Thank You

    Abhishek Gupta 7 years, 2 months ago

    1000/100

    1Thank You

    ANSWER

    • Posted by Sanidhay Mishra 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Anwesha Gohain 7 years, 2 months ago

    The colour of sun is red when it rises because the red rays deflects more than other coulours

    3Thank You

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    • Posted by Abi Malu 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 5 answers

    Khushi Boora 7 years, 2 months ago

    No never

    0Thank You

    Abhishek Sharma 7 years, 2 months ago

    No

    0Thank You

    Anurag Goyal 7 years, 2 months ago

    No

    0Thank You

    Rakshith V 7 years, 2 months ago

    No

    1Thank You

    Abi Malu 7 years, 2 months ago

    No

    3Thank You

    ANSWER

    • Posted by Hrithik Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Abhishek Sharma 7 years, 2 months ago

    J.J.Thomson

    0Thank You

    Anurag Goyal 7 years, 2 months ago

    J.j.thomson

    0Thank You

    Aman Anshuman 7 years, 2 months ago

    J .J . Thomson

    1Thank You

    ANSWER

    • Posted by Ravindra Patil 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Abhishek Sharma 7 years, 2 months ago

    The process of changing liquid into vapour at any temperature(below boiling point) is known as EVAPORATION. It is a bulk phenomenon. When the bulk of liquid gets sufficient heat it get evaporated

    1Thank You

    Sanya Shourya 7 years, 2 months ago

    The process of changing of liquid into gas even below its boiling point is called evaporation.

    1Thank You

    Gaurav Seth 7 years, 2 months ago

    Evaporation: The process of a liquid changing into vapour (or gas) even its boiling point is called evaporation. The wet clothes dry due to evaporation of water present in them. Common salt is also recovered from sea-water by the process of evaporation.

    <hr />

    Evaporation- The phenomenon of change of a liquid into gas at any temperature below its boiling point is called evaporation.

    2Thank You

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    • Posted by Arjun Ramesh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Khushi Boora 7 years, 2 months ago

    98 N

    2Thank You

    ANSWER

    • Posted by Devendar Singh Bhati 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Abhi Lash 7 years, 2 months ago

    By sub atoms present in

    0Thank You

    Riya Rathore 7 years, 2 months ago

    By number in perodic table

    0Thank You

    ANSWER

    • Posted by Deepak Shah 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Aman Anshuman 7 years, 2 months ago

    Stars twinkle because of turbulence in the atmosphere of the Earth. As the atmosphere churns, the light from the star is refracted in different directions. This causes the star's image to change slightly in brightness and position, hence "twinkle."

    2Thank You

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    • Posted by Aman Anshuman 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Shivani Singh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Aman Anshuman 7 years, 2 months ago

    A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of more than one cell. ... Many eukaryotes are multicellular, but the group includes the protozoa, unicellular algae, and unicellular fungi.

    2Thank You

    ANSWER

    • Posted by Aman Anshuman 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ravindra Patil 7 years, 2 months ago

    Yes it is correct ??

    0Thank You

    Shivani Singh 7 years, 2 months ago

    Theophrastus is known as the father of batony ..✌️?

    2Thank You

    ANSWER

    • Posted by Aman Uchiya 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Khushi Boora 7 years, 2 months ago

    The nutrients which helps in building blocks of plants are called macronutrients. They are called so because they are needed in larger amount by the plants.

    2Thank You

    Sayahnika Mishra 7 years, 2 months ago

    Macronutrient are the nutrients which are required by the plants in larger quantities

    1Thank You

    Amisha Rawat 7 years, 2 months ago

    Nutrients used by plants in large amount like nitrogen etc

    1Thank You

    ANSWER

    • Posted by Aman Uchiya 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Amisha Rawat 7 years, 2 months ago

    It is a revolution that helped india to become food surplus country from a food scarce country it involved the use if modern farming technique methods like use of hyv seeds etc

    2Thank You

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