5th EVS NCERT Chapter 1
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– Animals' Sleeping and Waking Routine: Encourages thinking about fractions and different animal behaviors regarding sleep and wake cycles.
– Tiger's Senses and Communication: Discusses how tigers mark territory, communicate through sounds, and perceive their surroundings using various senses.
– Threats to Animals: Explores the dangers faced by animals from human activities like poaching and the importance of protected areas for conservation.
– Animal Communication: Highlights how different animals communicate messages using sounds and special languages.
– Animal Senses: Introduces the diverse senses of animals such as sight, hearing, smell, and how they use them for survival and communication.
– Eyesight of Birds and Color Perception: Compares the vision of different animals, including birds, and explains how animals perceive colors differently from humans【4:0†source】【4:1†source】【4:2†source】【4:3†source】【4:4†source】.
What is the sleeping routine of a sloth and how many hours does it sleep per day?
A sloth spends almost 17 hours a day sleeping while hanging upside down on a tree branch.
How do tigers mark their area, and how can a tiger know if there is another tiger in its area?
Tigers mark their area with their urine. A tiger can at once come to know if there is another tiger in its area by the smell of the urine.
How do some male insects recognize their females, and how do mosquitoes find humans?
Male insects can recognize their females by their smell. Mosquitoes find humans by the smell of their body, the sole of their feet, and the heat of their body.
Do animals see colors the same way humans do? How is their color vision different?
Animals cannot see as many colors as humans. It is believed that animals awake during the daytime can see some colors while those awake at night can see things only in black and white.
How do birds have to move to see around due to their fixed eyes, and why do birds move their neck often?
Birds have to turn their heads to see around as their eyes are fixed. Birds move their neck often because their eyes cannot move, so they have to turn their heads to see different directions.
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