Photosynthesis contributes in the production of coal, crude oil and natural gas from the remains of dead plants.

Kulingana na maelezo uliyotoa:

Parasitic nutrition ni uhusiano wa ulaji ambapo parasite hupata faida.
A parasite ni kiumbe kinachoishi juu au ndani ya kiumbe kingine, kinachoitwa host, na hupata virutubisho kutoka kwake, mara nyingi kikimdhuru host.

Kwa hivyo, sentensi yako inapaswa kukamilika kama ifuatavyo:
A parasite is an organism that lives on or in another organism, called the host.