Make an appointment with your doctor if you're feeling fatigued for unexplained reasons. Some anemias, such as iron deficiency anemia or vitamin B-12 deficiency, are common.
Fatigue has many causes besides anemia, so don't assume that if you're tired you must be anemic. Some people learn that their hemoglobin is low, which indicates anemia, when they go to donate blood. If you're told that you can't donate blood because of low hemoglobin, make an appointment with your doctor.
D. Producir anticuerpos específicos para un patógeno
The correct answer is False!
We need the options in order to answer
Answer: he definition of ionic bond is when a positively charged ion forms a bond with a negatively charged ions and one atom transfers electrons to another.
Explanation: