Revision Notes of Ch 7 Weather, Climate and Adaptations of Animals to Climate Class 7th Science

  • 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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