AU of the following adaptations of living things are mentioned in the passage except that in their______.

题目：AU of the following adaptations of living things are mentioned in the passage except that in their______.

A. structure
B. ways to develop the survival skills of the young
C. production of the young
D. working system of the body

喵查答案：B

[解析] 只有B项“提高年幼生物生存技能的方式”文中未涉及，其他选项均在文中提及。