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Pyramids Of Biomass (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Pyramids Of Biomass (biology Only)' from the broader topic Ecology. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Why might a logged forest show a temporary increase in biomass of herbaceous plants but a decrease in total standing biomass?
What measurement would give the most accurate estimate of the living organic matter in a trophic level?
In a typical food chain, which trophic level forms the base of a pyramid of biomass?
Why are decomposers important when considering pyramids of biomass?
When would a pyramid of biomass most likely be nearly upright (broad base tapering to a point)?
Which factor can cause a pyramid of biomass to vary between ecosystems?
How can harvesting of primary producers (e.g., cutting grass for silage) change the pyramid of biomass on a farm?
What does an inverted pyramid of biomass indicate in an ecosystem?
Why are pyramids of biomass usually measured using dry mass rather than wet mass?
Why might a pond show an inverted pyramid of biomass with small plant biomass but large animal biomass?
Which real-world factor can make comparisons between pyramids of biomass from different habitats difficult?