Parasitism is a type of symbiotic relationship between organisms of different species where one organism , the parasite , benefits at the expense of the host .
A relationship between two different organisms where both benefit .
A relationship between two different organisms where both benefit .
用更简单的措辞重写这个: Parasitism is a type of symbiotic relationship between organisms of different species where one organism , the parasite , benefits at the expense of the host . 输出: