Answer:
Explanation: Homeostasis in animal
Homeostasis is the way animals maintain a stable internal balance in their body. It allows animals to function in the changing external conditions surrounding their body. ... Osmoregulation is an example of homeostasis. It is way osmosis is controlled by salmon to maintain a water balance.
I believe the answer is B. decomposers moving nitrogen into consumers.
"The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago, to the beginning of the Devonian Period, 419.2 Mya.<span> <span>Wikipedia."
https://www.google.com/search?q=He+Silurian+period+occurred&rlz=1C1RUCY_enUS760US760&oq=He+Silurian+...
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