Which muscles does the body use to balance itself while standing still?
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Fatal error: Uncaught ValueError: Path cannot be empty in /var/www/web/proprofsdiscuss.com/SSI/function_live.php:681
Stack trace:
#0 /var/www/web/proprofsdiscuss.com/SSI/function_live.php(681): get_headers()
#1 /var/www/web/proprofsdiscuss.com/SSI/function_live.php(1488): check_url_exist()
#2 /var/www/web/proprofsdiscuss.com/question.php(1000): get_qsn_ans()
#3 {main}
thrown in /var/www/web/proprofsdiscuss.com/SSI/function_live.php on line 681
