Answer:
a
Explanation:
if you take one organism out of the ecosystem it would have a huge affect on animals that eat it and plats that it eats. A lot of the animals that eat the dear would have a decrease in population because they don't have the deer to eat then the animals that eat the animals that eat the deer would also decrease because the animals that eat the deers population decrease.
I did some quick research, and your answer would be the Organisation for Economic Co-operation and Development. Hope this helps!<span>
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