The chemical that caused decline of the eagle population is pesticide DDT
The brain's outermost cellular layer is called the cortex.
Answer: A animals biome affect how it lives biomes are largely determined by climate, which is a function of many variables; but moisture and temperature are two key factors. ... Each species is adapted to the biome it is best suited to and this is a kind of "weeding out" process - or survival of the fittest in any given biome.
Explanation:
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Chemical energy, hope this helps. Correct me if im wrong but im sure its chemical energy
