Which of the following best explains what would happen if there were no autotrophs in an ecosystem? (1 point) 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.

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

Explanation:

The autotrophs are the producers in the ecosystem. They manage to produce food for themselves, and they represent the first trophic level, thus they are the basis of any ecosystem. These organisms are the once that produce the energy, and the organisms in the trophic levels above them use their energy to survive. If the autotrophs are removed from and ecosystem, the ecosystem will collapse, as there will be no source of energy for the organisms in the trophic levels above, thus all of them will die out quickly.

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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