Which of the following statements about circulatory systems is true?

Which of the following statements about circulatory systems is true?

گردشی نظام کے بارے میں مندرجہ ذیل میں سے کون سا بیان درست ہے؟
Explanation

Hormones are chemical messengers that travel through the bloodstream to target organs and tissues.

This is a key function of the circulatory system, helping regulate various bodily functions.