Tissues are collection of cells and intercellular substances that come together to perform a specific function. There are four types of tissues in the human body. { Trick – MACHINE } Muscular tissue aids in movement. Example – Skeletal (voluntary), Cardiac and smooth muscles. Connective tissue for supporting, linking, and cushioning various body parts. Example […]
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Ethylene (C2H4 or H2C=CH2) is nonpolar molecule and gaseous plant hormone, It is responsible for senescence in plants. It is essential natural plant hormone and is used to force fruit ripening in agriculture. It can be used to create a chemical weapon called sulfur mustard gas. It is olefiant gas which is used to make
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Transition elements are those elements whose two outermost shells are incomplete. Elements in d block in modern periodic table come under transition elements that is partially filled or any element which can form stable cations with incompletely filled d orbital. All d-block elements (groups 3-12) are transition elements except Zinc, Cadmium, and Mercury because of filled
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Measuring Instruments and Scales play a crucial role in obtaining accurate and reliable data. These tools help scientists and researchers quantify various physical quantities and parameters. Here are some common measuring instruments and scales used in general science : Sonar (Sound Navigation And Ranging) with the help of sonar, high frequency ultrasonic waves are sent
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Resistance (R) : any conductor that opposes the flow of electric current through it and depends on the shape and size of the materials, temperature, and nature of the materials is called resistance (R). R = ρL/A where ρ – resistivity, L – length and A – area of the cross-section. The SI unit of
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Astronomical distances, especially the distances between planets and stars, are so huge that they are measured in miles and kilometers. Expressing these in units can be extremely difficult, so they can be measured in AU (Astronomical Units), light years, parsecs, etc. The speed of light is constant throughout the universe and it is known for
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Physical and Fundamental quantity A quantity that can be measured is called a physical quantity. Fundamental quantities are those which cannot be expressed or measured in terms of other physical quantities. Scalar and Vector quantity Physical quantities which have magnitude only and no direction are called scalar quantity. Physical quantities that have magnitude and direction
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Physical and Fundamental quantity A quantity that can be measured is called a physical quantity. Fundamental quantities are those which cannot be expressed or measured in terms of other physical quantities. Scalar and Vector quantity Physical quantities which have magnitude only and no direction are called scalar quantity. Physical quantities that have magnitude and direction
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