levels of biological organization | Introduction to Biology | Biology | Chapter 1 | Class 9

levels of biological organization | Introduction to Biology | Biology | Chapter 1 | Class 9

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Yesterday, something very unlikely happened to me What was it? There was some issue with my internet connection Then what? Then I went out of my home and passed by a construction site where I looked at the bricks being used in the wall and thought… that how a wall is made up just by placing these bricks in a specific order and then these same walls make up a house. During all this, you came into my mind because of your scientific know-how and I thought that I’ll ask you about the living organisms that what’s their composition and how are they arranged into whole organisms. Just as a house is made up of bricks as its basic unit, similarly, everything is made up of a basic unit which is known as an Atom in scientific language. For example, Carbon, Hydrogen, Oxygen, etc When Hydrogen and Oxygen atoms come together they make Water, which by the way makes 75% of the whole world When atoms come together they form Molecules and Compounds and similarly, molecules form a Structure by joining with other molecules for example Mitochondria or Nucleus where DNA is present. So these structures which are formed are called Organelles These organelles have their own functions such as Mitochondrion is the powerhouse of a cell as it provides energy to it. When these different organelles come together they form a cell. Some of these cells are quite complex and they are called Eukaryotic cells while others are pretty simple ones and are called Prokaryotic cells. Prokaryotic cells are actually single-cell organisms which can survive independently When similar eukaryotic cells come together for some specific purpose then they form a tissue. Is it the same tissue with which people wipe off their nose? Hahaha!.. no this is the scientific one for example Muscle tissues which help us in movement or like there is blood which is a tissue that transport essentials across the body These tissues when come together they form up different parts of the body which then performs a function for example, Kidney or Heart and these are called Organs. These different organs then join up like Tongue, Intestine and Stomach… and forms a complete System in this case Digestive system. Similarly, different organs come together and form different systems. In the end all these systems such as the Circulatory system which is involved with blood circulation the nervous system involved in brain-related activities and others come together to form up a whole organism. All this arrangement is known as levels of Biological Organization. Got it now? Yeah, now I got it. Allow me to tell you what I learned Organisms are made up of many Systems And every system contains different Organs These organs are made up of different Tissues Tissues are in turn composed of similar kind of Cells And these cells further contains many different kinds of Organelles which are constituted of a lot of different Molecules and Compounds These molecules and compounds are formed when different Atoms are joined together. So basically this whole world is made up of Atoms And this whole arrangement is known as Levels of Biological Organization Dear viewers! subscribe to our Facebook page and Youtube channel and follow us on Instagram for more updates And please do let us know your views in the comment section.

3 thoughts on “levels of biological organization | Introduction to Biology | Biology | Chapter 1 | Class 9

  • hira khan Post author

    Super boys. good job MashAllah keep it up👍

  • Shahbaz Ahmad Post author

    Although it is a good effort but if its intended for illiterate people the title of the video and the terminology in the later part is pretty technical for a non technical person. try to make it more simple and easy. and try to use pashto words for all the organs and systems etc.

  • asad Ali Post author

    please share five kingdom system in pashto language

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