Zadanie 4b
(i) Define intraspecific competition. (ii) Explain how this competition can affect biological fitness over generations.
Populations and communities
Umiejętności w tym dziale
Umiejętności z tego działu sprawdza 56 zadań wzorowanych na arkuszach IB z lat 2022–2026. Dział pojawia się w 23 z 54 arkuszy w bazie.
Zadania z tego działu: 56 Otwórz w wyszukiwarce z filtrami
Zadanie 21
A red fox (Vulpes vulpes) and a European rabbit (Oryctolagus cuniculus) occupy the same meadow. Which grouping necessarily includes both organisms there? A. One species B. One population C. One genus D. One ecological community
Zadanie 36
A cover crop releases compounds that suppress germination of nearby plants. What agricultural use could follow from this allelopathic effect? A. Replacing all mineral nutrients with the released compounds B. Developing a treatment that reduces weed…
Zadanie 36
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…
Zadanie 37
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…
Zadanie 2c
Outline a method for estimating the number of roach in this wetland.
- Materiał graficzny
Zadanie 3a
(i) State the type of interspecific relationship normally represented by mycorrhizae. (ii) State one benefit that an orchid can obtain from this association.
Zadanie 3b
Explain how one named plant can use allelopathy to reduce competition.
Zadanie 5a
State the ecological term for all the balsam individuals of this species living in one area.
Zadanie 5b
Suggest two ways dense balsam stands could suppress other plants.