Upwelling is a process in which the deep and cold water rises to the water surface and not sea surface. This process plays an important role in maintaining balance in our ecosystem as it boost the marine productivity by washing the nutrients from deeper waters to the photic layer where photosynthesis is promoted.
Answer:
<u><em>Hey There the correct answer would be is D. Individual organisms</em></u>
hope it helps!
Answer:
returns to the left heart, completing the pulmonary cycle
Explanation:
<span>The oldest known vascular plants in the northern hemisphere are Devonian
This is true</span>
