The endocrine system consists of endocrine glands and endocrine cells scattered in certain tissues and organs.
举一反三
- The endocrine system is made up of ———————————— A: the endocrine glands and the hormones they secrete. B: the endocrine glands
- About the endocrine glands, which one is incorrect? () A: Endocrine glands are ductless glands B: There are nine major endocrine glands and several other organs C: Based on the function, endocrine glands can be divided into two types D: Adrenal glands belongs to the mixed glands
- About the endocrine glands, which one is (())<br/>? () A: Endocrine glands are ductless glands B: There are nine major endocrine glands and several other organs C: Based on the function, endocrine glands can be divided into two types D: Adrenal glands belongs to the mixed glands
- ____ is the study of the endocrine glands or hormones.
- Endocrine glands secrete amino acids.