Organic compounds of various structural complexity that are poured directly into blood are the transported to respective target tissues are:
Correct answer: A. Hormones
- A. Hormones
- B. Steroids
- C. Proteins
- D. All of the above
Explanation
Hormones are chemical messengers released directly into the bloodstream and carried to specific target tissues. Steroids and proteins are chemical types of hormones, not the general term being defined here.
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