Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes: it’s Exocytosis
Nutrients move through the ecosystem<span> in biogeochemical </span>cycles<span>. A biogeochemical </span>cycle<span> is a circuit/pathway by which a </span>chemical<span> element moves through the biotic and the abiotic factors of an</span>ecosystem<span>. It is inclusive of the biotic factors, or living organisms, rocks, air, water, and </span>chemicals<span>.</span>
The Geologic time scale makes it easier to see the age of rock layers
Waste products leaving the cell
