What are the adaptations for movement?
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Adaptations for movement:
Terrestrial animals adaptation to move on land:
1. Land animals have four limbs- forelimbs (two front limbs) and hindlimbs (two back limbs).
Examples: a) Dogs, cows, lions etc. move on four limbs. b) Reptiles such ad crocodiles, turtles, lizards etc. have shorter limbs and thus they crawl.
2. Animals such as worms and snakes do not have limbs, therefore they use their muscles to crawl. Worms condense and elongate their muscles for movement.
3. Some animals such as kangaroos, rabbits and frogs have strong hind limbs that helps then to hop and in forward movement.
4. Insects have six legs for walking.
Adaptatipn For Movement In Air:
1. Birds use wings which are known as modified forelimbs to fly. These modified forelimbs are attached to chest muscles. Their bones are hollow and thus lighter that helps them in flying.
2. Wings of insects and birds are diffetent as wings of insects have scales instead of feathers.
Example: Insects such as bees, butterflies have light bodies and wings to fly.
Adaptation For Aquatic Animals:
1. Animals such as fish have streamlined body and fins that helps them for miving in water. They use fins for balancing and changing direction. They move ahead by moving their body from side to side.
2. Animals such as ducks and frogs swim by webbed hind legs and by kicking the water.
3. Animals such as turtles have paddle-like limbs that push water backwards in forward movement.
4. Animals such as penguins swim in water with the help of short and strong forelimbs, called as flippers.
- 08 Jul 2021 @ 08:09