将耳突后切割去头的日本三角涡虫（Dugesiajaponicn）分别置于16℃、18℃、20℃、22℃、24℃、26℃和28℃条件下培养，在体视显微镜下观......

Many animals are marked with conspicuous circular features often called 'eyespots',which intimidate predators,pr......