The answer is d clinical deficiency
Answer:
The Amazon rainforest plays an important part in regulating the world's oxygen and carbon cycles. It produces roughly six percent of the world's oxygen and has long been thought to act as a carbon sink, meaning it readily absorbs large amounts of carbon dioxide from the atmosphere.
Answer:
D.The basic functional unit of orchid, grass, and fish is the cell.
Explanation:
These all need cells to survive. Hope this helps! UwU
I think it might be mass extinction.