1. Tardigrade
  2. Question
  3. Biology
  4. How many features are correctly related to hormones? P. Released in blood or open spaces. Q. Produced in trace amounts. R. Non-nutrient chemicals. S. Intracellular messengers.

Q. How many features are correctly related to hormones?
P. Released in blood or open spaces.
Q. Produced in trace amounts.
R. Non-nutrient chemicals.
S. Intracellular messengers.

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Solution:

Endocrine glands lack ducts and are hence, called ductless glands. Their secretions are called hormones. The classical definition of hormone as a chemical produced by endocrine glands and released into the blood and transported to a distantly located target organ has current scientific definition as follows: Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.