Locomotion and Movements

Locomotion Is one of the Important characteristics of all living beings as plants and animals. Mostly plants be fixed but some plants move. Plants ar fixed but even then they show movements as leaves of plants, touch-me-not show notable movements, when touched by hand. The sunflower b windups towards the sunlight. During the night time so many plants fold their leaves or close the petals but next morning the leaves and petals are opened normally. Plants like chlamydeous and Volvo changes their plazas.Animals move from here from there in search of food ND shelter. Animals also move from place to place to revoke unfavorable conditions, for mating. To lay eggs, to make their nests (birds). Animals also run very fast to save themselves from predators. Some animals like coral, sponge and sea-anemone do not change their places. Movements regard as change the position of body parts in the relation body axis but whole body does not move. For example when limbs are moved, fingers are m oved to hold the things. Neck is moved towards the sides to look and tall Is moved for different purposes.Locomotion means the position of entire odd Is changed from one place to another, this takes place due to some reasons such as to obtain food, to get shelter and avoid enemies. Grazing animals, like cow, horse, goat move from place to place, birds fly away, when they are going to be caught, frog jumps into the water when it feels danger. MOVEMENTS IN ANIMALS There are so many types of animals such as unicellular, small, medium size and very queen-sized size animals all show movements either they are aquatic, arboreal or terrestrial.Microscopic animals such as amoeba, Paramecium and euglena show following types f movements. (A) Amoeba Amoeba is found In water. It shows creeping movements. Locomotors movements of amoeba are brought by the formation of finger like projections called pseudopodia (false feet). Several pseudopodia may project out at in any time but one pseudopodia m ay be continuously projecting in a specific direction, this is called leading pseudopodia, remaining Pseudopodia are move back and amoeba moves in desired direction, this type of movements also occurs in W. B. C of human blood. B) Euglena Euglena shows flagella movement . Euglena moves tit the help of thread like structure called flagellum. curse extends out through the front end of Euglena, during the movements, the flagellum flogs back and forth to draw the Euglena forward in the in water with a genus Helix rotation on straight line (swimming movements). (C) Paramecium The whole body is recovered by thread like cilia which help paramecium in movement, this movements is called cilia movements. The cilia beat the water backwards and the paramecium moves forward, and as their stroke Is oblique, It rotates on Its longitudinal axis.When calla beat award direction the paramecium moves backwards (swimming movements). (D) serpent Hydra is a fixed aquatic organism. It shows two types of bending movements- 1. Looping Hydra moves with the help of its tentacles. Hydra aeroembolism its body and fixes the tentacles on the ground, now it frees its fixed end and draws it near the tentacles and now the body becomes straight up again. 2. Somersaulting In this releases its base and make the body straight and upside down and again bends the body forward till it touches the ground and now it releases the tentacles to make the body straight. INSECTSSome insects lack wings and they are unable to fly like silverfish and chair lice. Some insects like housefly and mosquito have one pair of wing, which are called shank wings, they fly with the help of these wings. Some insects have two pairs of wings the fore and hind wings, like butterfly and dragonfly.