Why is phainopepla's interaction with desert mistletoe considered facultative? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Phainopepla provide a benefit to desert mistletoe. b с Phainopepla can survive wihout desert mistletoe. Desert mistletoe are parasites. d Phainopepla eats desert mistletoe fruit. e Desert mistletoe provide no benefit to phainopepla.

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