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三、定义判断：共10题，每道题中都给出了一个概念的定义，请你根据这个定义，从四个备选的事物或行为中选出一个最为符合或最不符合该定义的典型事物或行为。注意：在这项测验中，本定义被假定为正确的、不容置疑的。请开始答题：寄生：是指一种生物长期或暂时生活在另一种生物的体内或体表，并从后者那里吸取营养物质来维持其生活的一种种间关系.根据以上定义，下列属于寄生关系的是( )。
A.
蘑菇、香菇、木耳、银耳、猴头、灵芝等大都生活在枯死的树枝、树根上或富含有机物的地方
B.
小丑鱼居住在海葵的触手之间，这些以使海葵免于被其他鱼类食用，而海葵有刺细胞的触手，可使小丑鱼免于被掠食，而小丑鱼本身则会分泌一种黏液在身体表面，保护自己不被海葵伤害
C.
会利用头部的吸盘状构造，吸附在其他的鱼类表面，但是不造成伤害，藉着被附着的个体的活动而行于水中
D.
赤眼蜂把卵产在螟虫的卵内，孵化出的幼虫以螟虫的卵为食，而导致螟虫死亡
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