I believe the answer you are looking for has to do with cells, they are the basic building block of life and are the smallest life that can support itself.
I believe proteins would be the correct answer, but of course I just learnt this stuff 2 weeks ago. xD
Answer:
The correct answer is - decreased population size at all levels.
Explanation:
A decrease in the productivity of producers of an ecosystem will lead to a decrease in all other organisms of the ecosystem including top-level consumers to the bottom-level producers due to the fact that producers provide energy and food to primary consumers.
It is because they are the only organisms that convert the sunlight to usable energy and food that transfer from one trophic level to other, so if the population of producers or their productivity will decrease then there will be decreased population size at all levels.
A, An ancestor of whales had legs. Hope i helped! :D
Answer:
<h3>1. producers releasing it as a product of photosynthesis </h3>
Explanation:
I hope it helps ❤❤