What are the pros and cons of Humoral Regulation?

Pros: acts for a long time, systemically throughout the body.
Cons: Hormones are needed, which may not be enough, and the transfer of these hormones is possible only through liquid media, but if there is a blockage of blood vessels, the hormones will not be able to reach the desired organ, simply due to the suspension of blood flow in the bloodstream. It activates for a very long time, it takes time for the hormones to take effect.

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