蛙类是指青蛙(黑斑蛙)、蟾蜍(俗称癞蛤蟆)等没有尾巴的两栖动物,常见于有水或潮湿的环境中,因其取材方便,所以是生物学中重要的实验材料。现将涉及蛙类的题目归纳总结如下:一、与化学元素及化合物相关例1.英国医生塞达尼·任格在对离体蛙心进行 Frogs are frogs (black-spotted frogs), pupas (commonly known as cockroaches) and other tailless amphibians, and are often found in environments with water or moisture. Because they are easy to draw, they are important experimental materials in biology. The topics involving frogs are summarised as follows: First, related to chemical elements and compounds Example 1. British doctor Sedani Renger performed in vitro frog hearts