Answer:
B. Charged Particles and Ions
<span>1 .phylum2.animals (features )
Happy studying ^_^
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I am guessing an Ecological Relationship as it is dependent on it's environment
Answer:
O Red Blood cells
Explanation:
The Universal Donor. O- blood type is the universal red blood cell donor because their red blood cells can be transfused into any patient, regardless of blood type. O- red cells must be used for trauma situations and other emergencies when the patient’s blood type is not known. O- red cells are also frequently used for babies and sickle cell anemia patients.
Brainliest?
