Question

explain why an ecological pyramid is smaller at the top than at the bottom

Answer 1

here is ur answer ^_^
https://answers.yahoo.com/question/index?qid=20080417172644AAx4oPO

Answer 2

thank you very much but whose answer should i use

Answer 3

i think this one
It's because of the rule of 10%. The organisms on the bottom are food for the organisms on top. When an organism is eaten, only 10% of the potential energy is passed on to the predator, which means 90% of the energy is unusable. This is because that 90% is already used by the prey and lost as heat. That energy can never be returned, but thanks to autotrophs, the cycle continues. As you go up the pyramid, each animal gets less energy from its prey so it has to eat a lot more (that explains why a lion must eat more than a human does).

Answer 4

and u r welcome ^_^

Answer 5

is there a shorter answer

Answer 6

LOL yeah i think
Other than because it's a perfect geometric shape, that it's more stable than it getting thicker as it goes up or the symbolism as both a primordial mound and the shape the rays of the sun take as they decent to earth?

All of the above. The sun one is because the pharaoh was the reborn earth-bound Ra, god of the sun.