Transfer Of Biomass (biology Only) (GCSE Biology)

When calculating ecological efficiency, you compare biomass at two successive trophic levels by dividing the higher-level biomass by the lower-level biomass and multiplying by 100. What does a result of 8% mean?

Which statement about respiration and biomass is correct?

If a field supports 1000 kg of plant biomass and a grazing herd converts 10% of that per year into animal biomass, how much animal biomass could be produced in a year (assuming perfect retention)?

How does nitrogen limitation of plants affect transfer of biomass to herbivores?

In aquatic food chains, why can the pyramid of biomass sometimes be inverted (small biomass of producers supports larger consumer biomass)?

Why can a small change at the producer level cause large changes at higher trophic levels?

What is the main reason most biomass is not passed on to the next trophic level?

An ecosystem has a large amount of primary productivity but low transfer to consumers. Which feature could explain this?

What is `net primary productivity`?

If 2000 kJ of energy is available to herbivores from plant biomass and consumers convert 10% of this into their own biomass, how much energy enters the next trophic level?

Which of the following is an example of a primary consumer?