Explain what each partner gains in legume nodules, orchid mycorrhizae and coral–algal associations.
Tę umiejętność sprawdza 11 zadań wzorowanych na arkuszach IB z lat 2022–2026.
In a lichen, a fungus provides a protected setting and mineral access, while its photosynthetic partner supplies organic compounds. How is this interaction classified? A. Competition within one species B. Mutualism between different species C. Parasitism…
In an established mycorrhizal association, fungal hyphae colonize a plant’s roots and obtain sugars produced by the plant. Which interaction is represented? A. Parasitism because the fungus receives carbon B. Competition because each partner must lose the same…
(i) State the type of interspecific relationship normally represented by mycorrhizae. (ii) State one benefit that an orchid can obtain from this association.
Identify the interaction between balsam and (i) the nectar-collecting bees, and (ii) the insects eating its leaves.
Photosynthetic symbionts live within a reef-building coral. Which transfer provides a benefit to the symbionts? A. Carbon dioxide released by coral respiration supplies carbon for photosynthesis B. Coral cells provide sunlight by respiration C. The symbionts…
A fungal partner forms an association with the roots of a photosynthetic woodland plant. What benefit does the fungal network commonly supply? A. Conversion of sunlight into sugar for the plant B. Production of a protective animal skeleton C. Improved uptake…
Outline mutualism using this association as an example.
Suggest why mutualism frequently involves organisms from distantly related groups.
Analyse the results shown in the graph.
Nitrogen fixation contributes to nutrient supply in ecosystems. Outline nitrogen fixation.
A nectar-feeding bat carries pollen between flowers of the same species. Why can the interaction be mutualistic? A. The bat receives food while pollen transfer supports plant reproduction B. Only the bat gains and the plant always dies C. The bat supplies the…
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