In parasitism, the parasite often harms the host.

在寄生现象中，寄生虫通常会伤害宿主。

Parasitism can be found in many ecosystems around the world.

寄生现象可以在世界各地的许多生态系统中找到。

Parasitism can lead to the deterioration of the host's health.

寄生可能会导致宿主的健康状况恶化。

Parasitism is a common strategy among various species of insects.

寄生现象是各种昆虫物种中常见的策略。

Scientists have studied different types of parasitism relationships.

科学家们研究了不同类型的寄生关系。

Scientists study parasitism to understand how it affects biodiversity.

科学家研究寄生现象以了解它如何影响生物多样性。

Organisms that practice parasitism usually obtain nutrients from their host.

寄生的生物通常会从宿主那里获取营养。

The relationship between ants and aphids is sometimes considered parasitism.

蚂蚁和蚜虫之间的关系有时被认为是寄生。

Parasitism is a relationship where one organism benefits at the expense of another.

寄生现象是一种一个生物体以另一个生物体为代价获益的关系。

Parasitism is a relationship where one organism lives on or in another organism and harms it.

寄生是一种生物与另一种生物共生但对宿主有害的关系。