biomass pyramid

[garytse86]

hello there I am doing an Edexcel past paper, and the question consists of 3 marks:

Q) Name the trophic level in a biomass pyramid that would include weasels and stoats. Explain your answer.

A) Carnivores as weasels and stoats eat other animals.

What is (possibly) the third mark?

[HallsofIvy]

Sounds good to me but then what do I know?

Math, I'm good at! Physics, okay. Biology???

Any biology experts out there?

[garytse86]

may be mathematics can explain why stoats should be carnivores?