Answer:
stomata
Explanation:
Structures in plant leaves that open and close to maintain homeostasis are stomata.
I think it's cardiovascular, sickle cell I think you have to be born with, and celiac is an allergy to gluten
D. habits and standards that shape how you live is your best answer
Lifestyle is the way you live your life, and the way you live your life is based off of your habits, standards, beliefs, decisions, etc.
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Answer:
Your retinas will burn
Explanation:
The sun can cause damage and blindness don't do it.
