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Welcome To Aaryan Super Knowledge Animal Tissues On the basis of the structure of cells and their function, animal tissues are classified into four major types: Epithelial Tissue Muscular Tissue Nervous Tissue Connective Tissue Epithelial Tissue: The covering or protective tissues in the animal body are animal tissues. The cells of this tissue are tightly packed and it forms continuous sheet. Indeed cells of epithelium contain very little or no intercellular matrix. The skin and lining of buccal cavity, blood vessels, alveoli of lungs and kidney tubules are made of epithelial tissue. Epithelial cells lie on a delicate non-cellular basement membrane which contains a special form of matrix protein, called collagen. Functions: Epithelial cells protect the underlying cells from mechanical and chemical injuries and bacterial or viral infection. It covers most organs and cavities within the body. It also forms a barrier to keep different body system separate. Epithe
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Question and Answer session with Aaryan Sekh......Part-8

    Welcome To Aaryan Super Knowledge Question and Answer session with Aaryan Sekh......Part-8 Q19. Aaryan Sir, Aj tak ka sab se hard question kon sa hai ? Ans:- Ye sawal mujhse kiya hai  Anand Raj King  ne. Meri life ka sabse hard question 5 rahe hain...... 1. Ek Psycho-killer ka pata lagaane ki paheli, jisko maine 2015 mein 3 mahine ke lagaatar koshish kar ke suljhaaya.....ye qustion mujhe diya gaya tha Scottland ke D.Sc ke proffessor ne. 2. dusra question meri life ka Streiochemistry se tha jisme mujhe sabse hard question ek aise molecule ka pata lagane ko mila jiska shape Toilet seat aur Bread ke sandwitch ki tarah hota hai...ye sawal mujhse kiya gaya tha McGill ke taraf se jo MIT ke Facuilty hain. 3. Ye sawal bhi bahutt hi ajeeb tha mujhe 10 compund khojne ko mile the jo sirf smell se pata karne the......jaise ki main aapko example bataata hu... (a) Ek aisa compound jiska smell Earth ki tarah ho. (b) Ek aisa compond jiska smell porty yaani stool/facial ki tara
Welcome To Aaryan super Knowledge Types of Matter - Is Matter Around Us Pure, Class 9, Science Powered by:- Aaryan sekh Full Screen Introduction We know that all the matter around us is not pure. If we observe some soil (Mitti) and some sugar placed on two different sheets of paper with a magnifying glass, we find soil contains clay particles, some grass particles, and even some dead insects etc. That is soil contains particles of different kinds is called an impure substance (or a mixture). Now observe sugar which contains only one kind of particles is called a pure substance. We can see that most of the matter around us exist as a mixture of two or more pure components, for example, milk, sea water, minerals etc. are all mixtures. Type of matter: On the basis of chemical nature, matter can be classified into two types: Pure substance. Impure substance (mixture) (i) Pure substance:  A homogeneous material which contains particles of only one kind and has