Kitab Nagri

Function of Skeleton in Support and Movement   Functions of skeleton in support and movement:   i) The skeleton holds the body and keeps its shape.   ii) Many bones of skeleton acts as levers.   iii) Bones produce movements.   iv) Skeleton provides suitable points for attachment of muscles.   When choosing a reader,…

Parts of Human Skeleton   Parts of Human Skeleton:   Human skeleton contain 206 bones. This skeleton divided into two parts:   Axial Skeleton: It consists of 80 bones. In this skeleton parts and number of bones are as under:   Skull 22 Ear 06 Chest bone 01 Ribs 24 Vertebral column 26 Neck Region…

Locomotion in Amoeba and Paramecium   Locomotion in Amoeba:   It moves with the help of pseudopodium. It changes its direction when a new pseudopodium begins from another point. Flow of protoplasm makes the pseudopodia.   Locomotion in Paramecium:   It moves with the help of cilia, which continuously beat against the water. The cilia…

Locomotion of Volvox and Euglena   Locomotion in Euglena:   Euglena move with the help of flagellum. Whipping action of flagellum caused it to rotate and at the same time it move forward. It does not move in straight line but it moves in zigzag path.   Locomotion of Volvox:   It floats freely over…

Auxins and What Do They Do   Auxins are plants hormones. Geotropism and phototropism are caused by unequal growth of plant parts and controlled by auxins.   Effect on phototropism:   From shoot, auxins pass down to the growing region specially the region of cell elongation to stimulate the growth. So shoots grow upward and…

Importance of Tropic Movements in Plants   i) Shoots grow vertically and help the plant to compete for light and carbon dioxide.   ii) The flowers are brought into an advantageous position for insect or wind pollination.   iii) Seed dispersal may be more effective on long and vertical stem.   iv) Positive geotropic movement…

Different Types of Movements in Plants   i) Tactic movement:   In this type of movement plant body moves as a whole from one place to another due to stimulus such as light, water and chemicals etc. For example chlamydomonas always moves towards low intensity of light.   ii) Nastic movement:   These movements are…

Define Stimulus and Response   i) Stimulus is any influence or change in external and internal environment.   ii) Response is a change in the activity or reaction of the organism to the stimulus.   Essential skills of a good preschool teacher Some parents do not send their children to kindergartens, preferring to leave their…

Locomotion and its Uses   Locomotion is the movement of whole organism form one place to another place under the influence of a stimulus.   Uses of locomotion:   Locomotion is used for:   i) Finding food by living organism.   ii) Avoiding capture by the enemies.   iii) Dispersal of seed and fruits.  …

Definition of Dialysis   It is treatment given to the patient with kidney failure with the help of dialysis machines. These machines acts like a kidney and separate the wastes from blood.   you need to have a stable psyche so as not to lose your temper.Organizational skills. The teacher should be able to interest…