Conclusion this is how the nervous system in human
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Trophic levels go by,
Producer (The nuts)
Primary Consumer (Squirrels)
Secondary Consumer (Raccoons)
Tertiary Consumer (Bear)
So squirrels would be at a lower trophic level.
Hope his help :)
Answer:
2nd trimester
Explanation
Brain start to be developed in this stage and so a lot of nutrients supplied to them and hence rapid cell division occur which led to rapid growth
