Zadanie 2b
Explain why less energy is available at each successive trophic level in this model.
- Materiał graficzny
Explaining energy losses between trophic levels
Account for unconsumed material, waste and respiratory losses during energy transfer through feeding relationships.
Tę umiejętność sprawdza 10 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 10 Otwórz w wyszukiwarce z filtrami
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 5c
Suggest why energy-transfer efficiencies differ among food chains.
Zadanie 1d
(i) Identify the region and vegetation habitat with the greatest omnivore density. (ii) Suggest why planktivores can be more numerous than piscivores. (iii) Suggest why smaller fish are more abundant among submerged vegetation.
- Materiał graficzny
Zadanie 5
(a) Outline the structure and properties of triglycerides. (b) Explain how energy moves through a photosynthetic ecosystem.
Zadanie 6
(a) Outline how lipids serve as energy reserves in humans. (b) Describe how an oxygen concentration gradient is maintained between alveoli and blood. (c) Explain why sunlight supports the energy supply of a photosynthetic ecosystem.
Zadanie 12a
A hypothetical production model gives the edible biomass obtained from100kg of feed. (i) State one reason why not all ingested energy becomes new animal biomass. (ii) Discuss the difference in feed conversion between cattle and fish. (iii) Deduce an advantage…
- Tabela do uzupełnienia
Zadanie 3d
Explain why only a small amount of energy passes to the next consumer level, excluding the transfers shown to X.
- Materiał graficzny
Zadanie 14c
Outline one limitation of an energy pyramid representing this food web.
- Materiał graficzny
Zadanie 6
Plants participate in energy flow and carbon cycling. (a) Outline energy flow through an ecosystem. (b) Describe how plants influence atmospheric carbon dioxide.