Agar comes from multiple sources, as many red seaweeds are “agarophytes” (that is, seaweeds containing agar in their cell walls). Species of Gelidium are the most important source of bacteriological (lab-grade) agar. Other main agarophytes, largely used for culinary agar, include red seaweeds from the genera Gracilaria, Pterocladia, Ahnfeltia, and others. Species from the genera Eucheuma, Gigartina, and Chondrus have been used as agarophytes in research during agar shortages.9
代孕带来了复杂的民事法律后果。邹露璐指出，在我国现行法律框架下，根据“分娩者为母”原则，无论分娩者是否与孩子存在基因关系，只要由其怀胎生产，在法律上即被认定为母亲。这一身份关系并不会因为一纸“代孕协议”或“放弃抚养声明”而当然消灭。，这一点在同城约会中也有详细论述
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