What is parasitism?

Parasitism is characterized by a specific ecological relationship in which one organism, the parasite, lives on or within another organism, known as the host. This relationship typically benefits the parasite at the expense of the host, which may suffer harm but usually does not die immediately from the interaction. The parasite relies on the host for nutrients and a suitable environment for its survival, while the host experiences negative effects, such as reduced health or reproductive success.

This concept is critical in understanding ecological interactions, as parasitism is a fundamental aspect of various ecosystems. By recognizing how parasites can influence host populations and overall community dynamics, we can gain insights into biodiversity and the balance of ecosystems. Hence, the definition aligns well with the scenario presented, emphasizing the dependency of the parasite on the host while highlighting the potential detriment to the latter.