Look at the diagram showing the positive feedback mechanism on page 13. Can you list the inputs that went into tool making? What were the processes that were strengthened by tool making?
After going through the positive feedback mechanism following points can
be inferred:
(a) Inputs that helped in tool making:
● Increased brain size and capacity of brain
● Upright walking
● Visual surveillance long distance
● Walking while foraging and hunting.
(b) The processes that were strengthened by tool making:
● Upright walking ● Increase in size and capacity of brain
● Visual surveillance, long distance walking while foraging and hunting.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
This question is important because it tests key concepts from the NCERT syllabus and is frequently asked in CBSE exams.
This question is based on core NCERT concepts explained in the chapter and should be revised thoroughly before exams.
After going through the positive feedback mechanism following points can
be inferred:
(a) Inputs that helped in tool making:
● Increased brain size and capacity of brain
● Upright walking
● Visual surveillance lon...
Step-by-step explanation:
• After going through the positive feedback mechanism following points can
• be inferred:
•
• (a) Inputs that helped in tool making:
• ● Increased brain size and capacity of brain
Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.
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