Notes For All Chapters Science Class 7
Revision Notes of Ch 7 Weather, Climate and Adaptations of Animals to Climate Class 7th Science
Topics in the chapter
- Polar Region
- Adaptive Features of Polar Bear
- Adaptive Features of Penguin
- Tropical Rainforest
- Adaptive features of animals found in tropical rainforest
• Different animals possess different features that help them survive in the climate of their respective habitats.
• The special features and habits that help an animal survive in its environment are known as adaptations.
• Climatic conditions of the polar region and the tropical rainforest.
Polar region
• It is marked by extreme climatic conditions.
• It is very cold for maximum part of the year.
• In this region, sun does not set for six months and does not rise for the remaining six months.
• The animals found in Polar Regions are polar bear and penguins.
Adaptive features of polar bear to overcome climatic conditions
→ White fur to escape predator
→ Strong sense of smell to locate and catch its prey
→ Two thick layers of fur and a layer of fat to keep the body warm in cold conditions
→ Wide and large paws for swimming and walking
Adaptive features of penguin
→ White fur
→ Thick skin and layer of fat under skin
→ Streamlined body
→ Webbed feet for swimming
Tropical rainforest
• The climate of tropical rainforest is generally hot and wet with continuous rain.
• Tropical rainforests are found in Western Ghats and Assam in India, Southeast Asia, Central America and Central Africa.
• The hospitable climatic condition supports huge populations of plants and animals.
• Intense competition for food and shelter is found in Tropical rainforests.
Adaptive features of animals found in tropical regions
• Red-eyed frog has sticky pads on its feet to climb trees.
• Monkeys have long and sturdy tail (for grasping branches), loud voice, etc.
• Bird Toucan has a long and large beak to reach fruits present on the branches.
• Lions and tigers have sensitive hearing to locate their prey and camouflaging skin colour to merge in their environment.
• An elephant uses its trunk as nose and tusk to tear the bark of trees.
• The soles of their feet are covered with thick pads to handle their enormous weight and they have large ears for hearing.
• Animals living in tropical regions have the ability to camouflage to protect themselves from predators.
NCERT Solutions of Weather, Climate and Adaptations of Animals to Climate Class 7
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