There are exceptions to this generalisation: If you were to count the number of insects feeding on a big tree what kind of pyramid would you get? Now add an estimate of the number of small birds depending on the insects, as also the number of larger birds eating the smaller. Draw the shape you would get.
Adjacent to a frequently-asked paragraph in the same chapter.
Match the Following: Column I A. Gross Primary Productivity B. Mineralisation C. Grazing Food Chain D. Top Consumer Column II 1. Conversion of inorganic nutrients from humus 2. Tertiary carnivore 3. Total photosynthesis including respiration losses 4. Energy flow major in aquatic ecosystems
Correct answer: C — A–3, B–1, C–4, D–2
Leaching sends nutrients down. Saprotrophs = fungi, bacteria. Forest pyramid inverted. Secondary consumers feed on herbivores.
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