Answer:
underground stem -- for storage of food ex. potato , ginger.
➡️spines for protection ex. citrus , bougainvillea
Explanation:hope this helps
Autotrophs can produce their own food
= Includes white blood cells fighting off bacteria and other disease causing organisms and red blood cells carrying dissolved gasses, also red blood cells carry oxygen from your lungs in a protein called hemoglobin through the blood .
Maintaining a stable internal environment
The answer might be extinction or genocide