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2. (a) In ecology what is meant by a trophic level? (b) Complete the pyramid of numbers by naming an organism in each case of A, B, C and D - Leaving Cert Biology - Question 2 - 2007
Question 2
2. (a) In ecology what is meant by a trophic level? (b) Complete the pyramid of numbers by naming an organism in each case of A, B, C and D. A .................... show full transcript
Worked Solution & Example Answer:2. (a) In ecology what is meant by a trophic level? (b) Complete the pyramid of numbers by naming an organism in each case of A, B, C and D - Leaving Cert Biology - Question 2 - 2007
Step 1
In ecology what is meant by a trophic level?
Answer
A trophic level refers to the position an organism occupies in a food chain, which is defined by its feeding relationship with other organisms. It indicates the level of energy transfer in an ecosystem and can be described as a feeding level or energy level within that chain.
Step 2
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Step 4
Comment on the relative sizes of an individual producer and an individual primary consumer in the pyramid.
Answer
Typically, the producer in the pyramid (A) is larger in biomass than the primary consumer (B). Producers, such as plants, convert solar energy into biomass, which forms the base of the pyramid, whereas consumers, such as rabbits, depend on the biomass produced, resulting in a smaller size for individual consumers.