Consider the following changes occurring in the brain : 1. Increase in the blood supply to the brain. 2. Increase in th rate of multiplication of brain cells. 3. F ormation of new interconnections in the brain cells. The change(s) which occur(s) when a pe

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Consider the following changes occurring in the brain :
1. Increase in the blood supply to the brain.
2. Increase in th rate of multiplication of brain cells.
3. F ormation of new interconnections in the brain cells. The change(s) which occur(s) when a person learns a new skill should include

question_subject: 

Science

question_exam: 

IES

stats: 

0,1,14,10,3,1,1

keywords: 

{'brain cells': [1, 0, 0, 0], 'brain': [1, 0, 0, 1], 'new skill': [1, 0, 0, 0], 'new interconnections': [1, 0, 0, 0], 'changes': [4, 0, 2, 9], 'multiplication': [1, 0, 0, 1], 'blood supply': [1, 0, 0, 0], 'rate': [2, 3, 13, 20]}

The correct answer is option 3, which states that only change 3 occurs when a person learns a new skill. Change 3 refers to the formation of new interconnections in brain cells.

Option 1 states that changes 1, 2, and 3 occur when a person learns a new skill. However, this is not true. Increase in blood supply to the brain (change 1) and an increase in the rate of multiplication of brain cells (change 2) are not necessarily associated with learning a new skill.

Option 2 states that only change 1 occurs when a person learns a new skill. This is incorrect as there is no evidence to suggest that learning a new skill leads to an increase in blood supply to the brain.

Option 3 states that only change 3 occurs when a person learns a new skill. This is the correct answer. When a person learns a new skill, new interconnections are formed between brain cells, allowing for the acquisition and consolidation of knowledge and abilities.

Option 4 states that changes 2 and 3 occur when a person learns a new skill. This is incorrect as there is no evidence to suggest that learning a new skill leads to an increase in the rate of multiplication of brain cells (change 2).