Please answer the following question: Answer the following question given this paragraph: Glandular Epithelium A gland is a structure made up of one or more cells modified to synthesize and secrete chemical substances. Most glands consist of groups of epithelial cells. A gland can be classified as an endocrine gland, a ductless gland that releases secretions directly into surrounding tissues and fluids (endo- = "inside"), or an exocrine gland whose secretions leave through a duct that opens directly, or indirectly, to the external environment (exo- = "outside"). Q: Which ductless gland releases secretions directly into surrounding tissues and fluids? Choices: - marrow gland - pineal gland - adrenal glands - endocrine gland A:
Answer:
endocrine gland