Name some organisms that derive nutrition from plants or animals without killing them.

Organisms that derive nutrition from plants or animals without killing them include parasitic species such as Cuscuta (amar-bel), ticks, lice, leeches, and tapeworms. Cuscuta, also known as dodder, is a parasitic plant that absorbs nutrients from its host plants. Ticks and lice are ectoparasites that feed on the blood or body fluids of animals without causing immediate death. Leeches are blood-sucking parasites. Tapeworms are intestinal parasites that absorb nutrients from the host’s digestive system. These organisms exemplify various parasitic strategies that allow them to obtain nutrition from other organisms without necessarily causing their immediate demise.