Hey guys ! Today image is about a cell okay lets see ; Disclimer : These all images and notes are all made by me ! Cell Introduction The cell You have seen that buildings are made of bricks. Similarly, the bodies of living organisms are made of tiny units cells. Cells can be seen only under the microscope. some organisms are made of only one cell. The cell is enclosed by a thin outer boundary ,called the cell membrane . Most cell have a distinct, centrally located spherical structure called the nucleus . The Nucleus is surrounded by a jelly-like substance called cytoplasm . Note ( Main points) (1) Living organisms are made of tiny units cells. (2)The cell is enclosed by a thin outer boundary ,called the cell membrane . (3)Centr...
ENVIRONMENT after the long vacation, when Ravi started going to school again, he noticed that the only playground next to his school was dug up. People said that a huge building with many flats will be constructed there . Ravi was almost in tears, when he released that the big playground with its soft grass, marigolds and butterflies is gone for ever. He shared his feelings with his classmates. in the assembly , the principal too sadly observed, ''See how our environment is changing.'' In the class Ravi asked his teacher , ''What is environment?'' ''Whatever you see in your surrounding ,'' said the teacher. Ravi thought aloud, ''That means, the school building,tables,chairs n the classroom, even that open field, the road, the garbage, my friends - all are ...