1.

What are the peculiarities of the movements of these living things?Living things : Snakes, tortoises, kangaroos, eagles, chameleons, frogs, gulmohur, sweet potato creeper, dolphins, ants, rattlesnakes, grasshoppers, earthworms.

Answer»
1. SnakesThey don’t have legs. They move in a S-shaped wavy motion. They cannot move over smooth surface. They move by contraction and relaxation of their body muscles.
2. TortoisesThey are very slow and they walk on their four legs by raising their body off the ground. They are the slowest animals.
3. KangaroosThe hind legs of kangaroos are long and front legs are short. A kangaroo moves by hopping (jumping) on its muscular hind legs with the support of long tail outstretched behind. This movement is called penta pedal movement [Penta = 5, pedal = legs].
4. EaglesEagles fly at great heights and they can lift and fly away with prey which are heavier than them. Wings of eagles are strong and powerful.
5. ChameleonsChameleons can change the colour of their skin and camouflage (hide) in their surroundings. They move slowly with their four legs. They also use their tail and claws to grab a branch and balance themselves.
6. FrogsTheir hind legs are long and front legs are short. Hence, they hop on their hind legs, when on land, and swim with the help of hind limbs when in water.
7. GulmoharGulmohar blooms in summer and the flowers which are red in colour reveal very few leaves. Their leaves fold up during evening. It grows to a height of 5 m to 12 m and it shed all its leaves in dry season.
8. Sweet potato creeperSweet potato creepers are fastest growing creepers that cover the whole ground. If they find some support, they try to bend towards it.
9. DolphinsThey move on surface of water by slapping their tail, exposing their head, leaping out of water, diving in the water and doing a side flop. 30 patterns are seen in their behaviour while moving on water.
10. AntsThe ants move in a line and as they move, they leave a chemical called pheromone behind as a trail which attracts other ants. They have six legs and they can walk very fast.
11. Rattle snakesRattle snake is a highly poisonous snake. The rattling sound is made by the shaking of the rattle located on its tail when it moves.
12. GrasshoppersThey are insects with three pairs of walking legs and two pairs of wings which helps them to walk, fly and jump. They can leap vigorously due to powerful hind legs.
13. EarthwormsEach segment on the body of earthworm contain group of bristles (called setae) which are used for movement. They move forward by repeated contractions and relaxations of their muscles. A slimy substances secreted by the earthworm helps in its movement.


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