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I have already looked over my textbook and study guide but i can't seem to find it the information. I can only find what biomass means.

2007-06-09 10:01:00 · 6 answers · asked by seasidegirl_2004 2 in Science & Mathematics Biology

6 answers

Biomass decreases are you go up on a food chain. Thats because the amount of available energy that is transferred to an organism after it consumes another decreases as you go up on a food chain. The bottom of the chain is plants and other autotrophs that make their own food directly then as they are consumed by heterotrophs like herbivores and carnivores the amount of energy transfer is only 5-10% thus it can only support a smaller amount of organisms (biomass)

2007-06-09 11:57:28 · answer #1 · answered by pezeveng3319 2 · 1 1

Biomass Food Chain

2016-12-14 16:49:42 · answer #2 · answered by barreda 4 · 0 0

Biomass circulate between trophic stages is actual the same ingredient as power circulate between trophic stages. Biomass decreases as you pass up the trophic stages because of the fact in basic terms an elementary of 10% of biomass (or power) of the previous trophic point is transferred to the subsequent trophic point. So biomass and power the two cut back as you progression into greater trophic stages.

2016-11-27 20:44:52 · answer #3 · answered by ? 4 · 0 0

Ecologists usually use the "10% rule" to estimate the biomass of the different trophic levels in the pyramid.

As you go up the pyramid, each level has about 10% as much biomass as the level directly below it.

So, moving toward the smaller top of the pyramid, divide by 10 to get the biomass. Moving toward the larger base of the pyramid, multiply by 10 to get the biomass.

2007-06-09 11:55:44 · answer #4 · answered by ecolink 7 · 0 1

Biomass decreases as you move up trophic levels. For example, consider a food chain of grass, rabbits/deer, and wolves. Several fields of grass will support maybe 20 rabbits and 5 deer, which could support at maximum only one wolf. Because you lose and condense energy as you move up a food chain, each level gets smaller and smaller. The biomass of the grass may be a few thousand pounds, but the biomass of the rabbits and deer will be even less, and the mass of the single wolf at the top will be even less than that.

2007-06-09 10:40:22 · answer #5 · answered by karana 4 · 2 0

If by biomass you mean bacteria then they usually grow until the consume all the food and then growth slows to stationary phase and many die. Much of the killed cells are actually recycled back into new cells

2007-06-09 10:10:00 · answer #6 · answered by Big K 5 · 0 3

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