True or false
Insulin is secreted by `alpha` cells of Islets of Langerhans of pancreas

Testosterone is secreted by ______ cells.

Name the secretion of alpha and beta cells of the islets of Langerhans.Mention of the role of these ecretions.

Islets of Langerhans form the endocrine part of

Which cells secretes androgens in man?

Mast cells secrete

Say True or False: Fertilizins are secreted by immature eggs.

True or False Muscle cells are branched .

What are four types of hormones secreated by islet of Langerhans?

Oxyntic cells secrete:

which is true for animal cells?