If in a forest on an area of 1 hectare weighed separately all plants, all animals separately (insects, amphibians, reptiles, birds, mammals)

If in a forest on an area of 1 hectare weighed separately all plants, all animals separately (insects, amphibians, reptiles, birds, mammals), then the representatives of which group will be the heaviest and lightest in total?

1) Based on the law of the pyramid of biomass,
2) the heaviest will be the plants,
3) the lightest are predatory vertebrates (i.e., those who are on the last links of the food chain).

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