Question: merocrine apocrine and holocrine are all examples of
[{'answer': 'manner of secretion', 'provenance': [{'wikipedia_id': '6514912', 'title': 'Merocrine', 'start_paragraph_id': 2, 'start_character': 29, 'end_paragraph_id': 2, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6514912', 'title': 'Merocrine', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 156, 'bleu_score': 0.9271474438253491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10011024932093517195}, 'section': 'Section::::Abstract.'}]}]