Question

Which of the following best explains what would happen if there were no autotrophs in an ecosystem?

They are the first trophic level in an ecosystem and without them the rest of the organisms in the ecosystem would have no source of energy.

They are the top trophic level in an ecosystem and without them the herbivores would have to adapt to consuming other heterotrophs for energy.

They are the first trophic level in an ecosystem and without them heterotrophs would overpopulate.

They are the top trophic level in an ecosystem and without them the ecosystem would collapse.

Answer 1

well its between the first and the last

Answer 2

An autotroph,(self-feeding) or producer, is an organism that produces complex organic compounds (such as carbohydrates, fats, and proteins) from simple substances present in its surroundings .

Answer 3

So It Would Be The Last One ?

Answer 4

Actually plants are in the first trophic level. As producers who make their own energy, they are known as autotroph. Hetertrophs that eat plants (herbivores) are in second trophic level, and carnivores follow.

Answer 5

So it would be A

Answer 6

well true, and correct are different, there is a difference between First Trophic level and Top Trophic level.

Answer 7

However the ecosystem would collapse

Answer 8

So It Is A ?

Answer 9

But that is due to lack of energy.

Answer 10

I would personally go with A. Can you ask your teacher about it?

Answer 11

yes they are at the first trophic level. other organisms depend on them for energy in the form of food, where did the plants get their energy? the sun. EVERY FOOD CHAIN HAS TO START WITH A PRODUCER so that wat makes the last one right too cause without them the rest have no food energy and if they have no food energy they cannot carry out the characteristics of life and if they cant do that then well they will die hence there will be NO PLANTS = NO ANIMALS

Answer 12

My teacher stoped working at 6 :/ Sp Now I Am On My Own

Answer 13

Exactly
So both are "Technically correct" but I think the teacher is looking for answer A.

Answer 14

if you look at it they are saying the same thing.... one just say that there will be no food source... the last one just saying that it will result in a colapse in the ecosystem.

Answer 15

YOU GUYS DO REALISE WE DEPEND ON PLANTS FOR MOST THINGS RIGHT.....SO technically without them THIS WORLD WOULD BE NOTHING!!! :-) just saying, thats why i choose the lkast one still.

Answer 16

Yes but the technicality of the name First Trophic

Answer 17

The question wants the immediate result, not what will happen over a short period of time.

Answer 18

therefore ecosystem would have no source of energy. thus resulting in a totalt ecosystem collapse.

Answer 19

oke. :-)

Answer 20

Prodiretch

Answer 21

wat?