★ Blood Donation Quiz
How long after a cold should you wait before donating blood?
A. 2 weeks
B. 4 weeks
C. until recovered
Select your answer:

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Autoimmune Disease › ViewWhich type of antibodies are commonly found in Hashimoto’s Thyroiditis?
A. Anti-thyroid peroxidase (TPO) antibodies
B. Anti-GAD antibodies
C. Anti-dsDNA antibodies
D. Anti-cardiolipin antibodies
A Treat For Mosquitoes › View
What grows in the pond water?
A. algae
B. plants
C. tree