Greatest advantage of bipeadal movement :[NCERT 71]a)Fore arms becoming free for carryingout order of brainb)Greater speedc)Supports the body properlyd)Loss of weightCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. The greatest advantage of bipedal movement is forearms becoming free for carrying out order of brain. It also raises the head, this allows a greater field of vision with improved detection of distant dangers or resources, access to deeper water for wading animals and allows the animals to reach higher food sources with their mouths. So, the correct answer is option A.

Answer

Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. The greatest advantage of bipedal movement is forearms becoming free for carrying out order of brain. It also raises the head, this allows a greater field of vision with improved detection of distant dangers or resources, access to deeper water for wading animals and allows the animals to reach higher food sources with their mouths.

Answer

Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. The greatest advantage of bipedal movement is forearms becoming free for carrying out order of brain. It also raises the head, this allows a greater field of vision with improved detection of distant dangers or resources, access to deeper water for wading animals and allows the animals to reach higher food sources with their mouths.

Answer

The greatest advantage of bipedal movement is that it allows the forearms to become free for carrying out orders of the brain. This advantage is particularly evident in humans, as they have evolved to walk primarily on two legs, freeing up their upper limbs for various tasks.

1. Explanation of Bipedal Movement:
Bipedal movement refers to the ability to move on two legs. This form of locomotion is unique to humans and a few other primates, separating them from other animals that primarily use all four limbs for movement. Bipedalism requires a complex coordination of various body parts, including balance, posture, and gait.

2. Forearms Becoming Free:
By adopting a bipedal stance, humans can free their forearms and hands from the task of locomotion. This allows them to perform a wide range of activities using their upper limbs, such as carrying objects, using tools, and manipulating the environment. The ability to use the hands for tasks other than locomotion has been crucial for human evolution and the development of complex civilizations.

3. Brain-Hand Coordination:
The brain plays a vital role in coordinating and controlling the movement of the hands. The freed-up forearms provide a stable platform for the brain to send commands to the hands with precision. This coordination is essential for performing intricate tasks that require fine motor skills, such as writing, painting, playing musical instruments, and using tools.

4. Tool Use and Manipulation:
One of the significant advantages of having free forearms is the ability to use tools efficiently. Humans have developed and mastered the use of tools, which has been instrumental in their survival and progress as a species. Tools extend the capabilities of the hands, enabling humans to perform tasks that would be otherwise impossible or highly inefficient.

5. Adaptability and Versatility:
The freedom of the forearms allows humans to adapt to a wide range of environments and situations. They can carry objects, transport resources, build structures, and perform complex tasks that require the use of hands. This adaptability and versatility have been crucial for human survival and success in various environments throughout history.

In conclusion, the greatest advantage of bipedal movement, specifically in humans, is the freedom it provides to the forearms and hands. This enables humans to carry out the orders of the brain, perform intricate tasks, use tools efficiently, and adapt to different environments. The ability to use the hands for various purposes beyond locomotion has been a key factor in human evolution and progress.

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