Zadanie 1a
(i) Compare and contrast male and female consumption under the two treatments. (ii) Suggest one reason the sexes differ in prey preference. (iii) Suggest one prey characteristic that could influence feeding choice.
- Materiał graficzny
Biology SL Paper 2, May 2025, TZ2
Zadania wzorowane na pytaniach z tego arkusza: te same umiejętności, format i punktacja, inne dane i kontekst. Treści arkusza IB nie publikujemy.
W bazie 17 zadań z tego arkusza, razem 66 punktów, każde z kluczem i schematem punktowania. Najwięcej zadań sprawdza: Evaluating biological evidence and methods (2), Recording and interpreting biological data (2), Organization of a eukaryotic cell (2).
Rozwiąż arkuszCały arkusz po kolei. Wynik na końcu.
Dodaj cały arkusz do zestawuZadanie 1b
(i) Calculate the percentage decrease in crustaceans consumed by males in mixed-prey trials relative to single-prey trials. (ii) Deduce which sex has the more flexible prey choice, giving a reason. (iii) Using the available data, justify the conclusion that…
- Materiał graficzny
Zadanie 1c
Suggest one important limitation.
- Materiał graficzny
Zadanie 2a
Domestic pigeons have widely differing plumage and body forms. Define a species using the biological species concept.
Zadanie 2b
A researcher compares karyotypes from several pigeon breeds. Describe how karyotypes could help assess whether the birds belong to one species.
Zadanie 3a
A simplified cell diagram highlights two membrane compartments. State a function of X and a function of Y.
- Materiał graficzny
Zadanie 3b
Molecules move across the plasma membrane by several routes. Describe three distinct membrane-transport processes.
Zadanie 3c
A typical bacterium is compared with a typical animal cell. Outline one structural difference between them.
Zadanie 4a
Reintroducing a native ecosystem engineer to a wetland changes water flow and creates pools and channels. Outline the importance of keystone species.
Zadanie 4b
Reintroducing a native ecosystem engineer to a wetland changes water flow and creates pools and channels. Suggest why greater biodiversity can benefit the ecosystem.
Zadanie 4c
Reintroducing a native ecosystem engineer to a wetland changes water flow and creates pools and channels. Outline two other rewilding approaches that restore natural processes, apart from bringing back a keystone species.
Zadanie 5a
Outline two adaptations of xylem vessels for transporting water.
Zadanie 5b
Water moves from soil through a plant to its leaves. Explain how transpiration drives this movement.
Zadanie 6a
A small mammal inhabits a hot desert. State two abiotic characteristics of this biome.
Zadanie 6b
A desert fox must limit overheating and water loss. Suggest one adaptation that assists survival in this environment.
Zadanie 7
Consider connections between biological processes at different levels of organization. (a) Outline three properties of energy-storage polysaccharides that make them effective reserves. (b) Describe the transfer of energy along a food chain. (c) Explain why…
Zadanie 8
Consider connections between biological processes at different levels of organization. (a) Outline how mitosis preserves hereditary information in new cells. (b) Describe the role of DNA variation in speciation. (c) Explain the genetic basis of inheritance…