my first video for grade six in science. It is helpful for basic graders

adaptation in organisms is a short description slides for elementary level kids. It helps everyone to make slides for presentation.

1. Presentation Subject: Science Topic: Adaption of Organisms Adaption of organism

2. What is Adaption?

3. Any characteristic that is advantageous to a particular organisms which makes it better suited to its environment is known as adaptational characteristics. The ability of adjustment of living organisms in their environment is called adaptation. Adaption of organism Plants Animals

4. Adaption in Plants On the basic of quantity of water available in the habitat, plants can be grouped into three types: hydrophytes (Hydrophytes are those plants which grow in aquatic habitat like pond, lake, river, etc.) Mesophytes ( mesophytes are the plants which require moderate amount of water) Xerophytes (Those plants which grow in desert dry habitat are called xerophytes)

5. Adaptational characteristics of Hydrophytes Due to the availability of plenty of water, hydrophytes have less developed and weak root system Most of the plants are covered with waxy substance which prevents them from decaying water Most of the hydrophytes have weak and flexible stem which help them to bend easily The stem of lotus and water lily contain large tunnels and holes for air that helps them to float

6. Mesophytes and their Adaptational characteristics Mesophytes have well-developed root hairs adopted to absorb from the soil The leaves are generally large, board, thin and variously shaped numerous for Mechanical tissue and conducting tissue are well-developed Climber plants like pumpkin, cucumber, etc. contain hooks, tendrils, aerial roots etc. support.

7. Adaptational characteristics of xerophytes Xerophytes plants have well- developed and highly branched root system which grows in search of water The steam of xerophytic plants in spongy having water storage tissue Desert plants have special tissue modified for storing water In cactus, leaves are reduced to spines or scales. This helps in preventing loss of water The steam of cactus is fleshy and green which remains covered with spines

8. Adaptation in Animals Aquatic adaption in animals Body of most aquatic animals is streamlined, to reduce friction .such body shapes allows swift passage in water while swimming. Body remains covered with water proof scales and mucus coat which helps to protect the body against decaying. Locomotion takes place with the help of fins in fishes, webbed –feet in frog and duck, and flippers in whale. Breathing takes place with the help of gills. They are adapted to absorb dissolved oxygen in water. Air bladder or swim bladder is present in some fishes. It is filled with air and helps in floating.

9. Terrestrial Adaptations in Animals Terrestrial animals have different types of limbs and claws adapted for walking, running, climbing, burrowing, etc. limbs are long and strong in fast running animals like donkey, horse, cow, sheep, rhinoceros, buffalo, etc. are walk and run on tips of digits covered with hoof Some animals like monkey, baboon, etc. have climbing capacity. They climb on trees, walls or cliffs for food, shelter and protection. Some animals like lizard contain adhesive pad on their digits which create suction pressure and help them to crawl on walls easily Body muscles are well-developed for walking and swift running in tiger, lion, human, etc. In burrowing animals like mole, the head and snout are tapering Their bodies of animals that live in cold climate such as snow leopard, yak, Himalayan bear, blue sheep, etc. remain covered with fur, It protects them from extreme cold.

10. Xeric Adaptations Desert animals their bodies to prevent loss of water by perspiration. Animals like snake, scorpions, spider, etc. contain poison gland for protection The desert snakes, rat, etc. make deep burrows and remain inside them during day time when desert is hot or dry Camel has a hump on its back to store food in the form of fat. It uses entire food store while walking on hot sand. Its large and fleshy soles help it to walk on hot and slippery sand.

11. Arboreal Adaptation Their body is modified according to their behaviour and habitat. They have patagium- like organs adapted for gliding flight Aerial adaptations The body of birds is streamlined or boat-shaped which reduces air resistance during flight Fore limbs are modified into wings for flight Flight muscles or breast muscles are well developed Have light weight skeleton to reduce body weight Toothless beak is present Breaks and feet are modified according to feeding habit