Why are food chains of a limited length?

Answer 1

I am trying my best to give u feedback. When my children were young and visited France and Spain on holiday they had "Crockey chips" or "Potatas frias" both made by PepsiCo under the "Lays" brand name.

These were always accompanied by fresh salad/pickled veg and salami/bread etc.

Why can't you sell these packs in uk? They are so much much bigger/better than the usual "Walkers" stuff sold in the UK?

Just an idea.

Please send me a pack if you think it is worth investigating further.

Best regards

Nick

Answer 2

All food chains are pretty short. There are never more than four steps, because a lot of energy is lost at each step, and after three steps most of the available energy has been expended. They go around in a circle.

Answer 3

Because each consumer only receives 10% of the energy the plant it ate had.

If a flower had 100% energy, then the primary consumerwould receive 10% of the flower's energy.The secondary consumer (who eats the primary consumer) receives 1% of the flower's energy.

The tertiary consumer receives .1% of the flower's energy.

Plants have a lot of energy, but to keep going, an 8th order consumer would receive .000001% of the plant's energy, and that, even if the animal was eating 7th order consumers every part of its day, would probably not give it enough energy to survive.

Answer 4

The base of the food chain determines the number of levels above it. The first level needs to use about 90% of the energy that they make for themselves for growing and reproducing. That leaves 10% for the next level. That level uses 90% of that 10% for growth and reproduction. That means that only 1% of that can go up for the next level to use. Only in a very few ecosystems (tropical rain forests or temperate rain forests) is there even enough another level.

Answer 5

The first are producers, the second are what the duck ! just look it up!!

Answer 6

because of the food is good for people specially with poison.

Answer 7

All ecosystems have a finite amount of energy and energy is passed up a food chain inefficiently.

Answer 8

Energy is NOT recycled in ecosystems.

Answer 9

energy