https://www.khanacademy.org/science/telangana-class-10-biologyin/x58e314ef7f27e124:nutrition/x58e314ef7f27e124:heterotrophic-nutrition/e/parasitic-nutrition-in-cuscuta 2026-01-11T08:44:04.593456302Z Parasitic nutrition in Cuscuta This exercise explores nutrition in Cuscuta by linking its structure, life cycle, and parasitic adaptations to how it obtains food. Through short scenarios, it tests why Cuscuta is classified as an obligate parasite and how reduced photosynthesis shapes its dependence on a host. The questions emphasize cause–effect reasoning behind germination, twining, and haustorial function. It also explains how xylem and phloem extraction leads to host decline. Khan Academy exercise