LIFE SCIENCE

Detailed explanation-1: -Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life.

Detailed explanation-2: -Parasites are plants or animals that live in or on another living thing, getting their food from it while it is still alive. The organisms that they live on are called hosts.

Detailed explanation-3: -The organism that receives all the benefits is called the parasite. Whereas the organism that is harmed by this relationship is called the host. The parasite feeds on the host and gets nourishment from it while the host is harmed in this process.

Detailed explanation-4: -Parasites that live outside the host are called ectoparasites (Figure 2A). For example, a flea is a parasite that lives on cats. In contrast, parasites that live inside their hosts are known as endoparasites (Figure 2B).