The ova of A. vulgare and P. pruinosus are characterized by the presence of perinuclear glycogen spherules and peripheral proteid yolk in A. vulgare. The follicle cells are not thought to be nutritive ...
Exocrine tissues are classified by type of secretion, for example serous, mucous or mixed, and mechanism of release of secretory product e.g. merocrine, apocrine, holocrine. The salivary glands are ...
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