Urgent Biology Q!! - Exam tomorrow - v Quick!!Watch
hawk (v small rectangle)
blue tit (small rect)
ladybird (middle size rect)
aphid (bigger rect)
oak tree (v large rect)
in that order? surely ladybirds have less biomass than a hawk?? Thanks
Maybe it's the combined weight of them all...? There's more ladybirds than hawks.
I haven't done Biology for a while but I reckon...
Individually, yes, one ladybird has a much less bio-mass than a hawk. But in that food chain, there may only be one hawk, but a whole load of ladybirds, so collectively, the ladybirds have a larger biomass than the one hawk. There may only be one tree as well, but that obviously has a bigger bio-mass than any of the others cos it's so huge.
I think that's right. Good luck with your exam.