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Alpha cells of islets of Langerhans secrete the peptide hormone glucagon, which elevates the glucose levels in the blood. Option a wrong
Oxyntic cells secrete HCl option b correct
Kupffer cells digests cellular debris, foreign substances, microbes, cancer cells, and anything else that does not have the types of proteins specific to healthy body cells on its surface Option c wrong
Sebaceous glands are microscopic exocrine glands in the skin that secrete an oily or waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals. Option d wrong
Answer : (b)