Question: what has to be present in biomes to make them similar
[{'answer': 'vegetation structure', 'provenance': [{'wikipedia_id': '4802', 'title': 'Biome', 'start_paragraph_id': 45, 'start_character': 96, 'end_paragraph_id': 45, 'end_character': 116, 'bleu_score': 1.0, 'section': "Section::::Classifications.:Whittaker (1962, 1970, 1975) biome-types.:Key definitions for understanding Whittaker's scheme.\n"}]}, {'answer': 'physiognomy', 'provenance': [{'wikipedia_id': '4802', 'title': 'Biome', 'start_paragraph_id': 5, 'start_character': 182, 'end_paragraph_id': 5, 'end_character': 193, 'bleu_score': 1.0, 'section': 'Section::::History of the concept.\n'}]}, {'answer': 'features of the environment', 'provenance': [{'wikipedia_id': '4802', 'title': 'Biome', 'start_paragraph_id': 45, 'start_character': 131, 'end_paragraph_id': 45, 'end_character': 158, 'bleu_score': 1.0, 'section': "Section::::Classifications.:Whittaker (1962, 1970, 1975) biome-types.:Key definitions for understanding Whittaker's scheme.\n"}]}, {'answer': 'characteristics of their animal communities', 'provenance': [{'wikipedia_id': '4802', 'title': 'Biome', 'start_paragraph_id': 45, 'start_character': 163, 'end_paragraph_id': 45, 'end_character': 206, 'bleu_score': 1.0, 'section': "Section::::Classifications.:Whittaker (1962, 1970, 1975) biome-types.:Key definitions for understanding Whittaker's scheme.\n"}]}, {'provenance': [{'wikipedia_id': '4802', 'title': 'Biome', 'start_paragraph_id': 45, 'start_character': 0, 'end_paragraph_id': 45, 'end_character': 206, 'bleu_score': 0.8330787010500831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2212417756429745744}, 'section': "Section::::Classifications.:Whittaker (1962, 1970, 1975) biome-types.:Key definitions for understanding Whittaker's scheme.\n"}]}]