Answer: Income
Explanation:
In the ecosystem energy budget, primary productivity is like income. This is because primary production is the way in which energy enters an ecosystem.
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<span>Species. Which is a group of living organisms with a series of common characteristics that distinguish them from the rest. Said butterfly may have a common origin in evolution but have now developed into their own species</span>
If I am reading this right, I would say that that fiber would be a nerve.
