which one of the following is a permanent change in the body that does not occur due to regular physical exercise
Answers
The correct answer is option 2: Increase in the abdominal size.
The complete question is:
Which one of the following is a permanent change in the
body that does not occur due to regular physical exercise?
1. Increase in the number of capillaries.
2. Increase in the abdominal size.
3. Increase in the blood cells.
4. Increase in the size of the heart.
Let us analyse the options:
1. Increase in the number of capillaries- This happens because the body requires more oxygen during exercise. So, the capillaries that have been inactive are also used to improve blood circulation and oxygen supply to all parts of the body.
3. Increase in the blood cells- Exercising requires greater oxygen supply. Since blood cells carry haemoglobin, it is natural for the body to increase the number of blood cells so that the blood’s oxygen carrying capacity can also be increased.
4. Increase in the size of the heart- During exercise, the body needs more oxygen, which triggers greater blood circulation. This makes the heart work harder to pump blood to all parts of the body. The pumping activity develops the cardiac muscles and makes the walls of the heart thicker and also alters the size of the heart to help it pump more blood more efficiently.
2. Increase in the abdominal size- Exercising tones up the muscles, and may change the size of the abdomen. However, it is not a permanent change. And so, this is the correct answer.
Explanation:
The question statement does not list any option based on which we have to select the correct answer. However a general fact about exercise is that regular physical activity does not alter the process of growth and development. These changes in body proportions occur because body parts grow as per time and diet involved. Normally growth of muscles in linked with physical exercise