Explore human biology trivia with 68 supporting Trivia Castle questions, related topics, and a direct link into the game.
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Answer: Harmless to most people
Bonus fact: Common allergens include pollen, certain foods, dust mites, and animal dander.
Answer: Anaphylaxis
Bonus fact: Anaphylaxis can affect breathing and blood pressure and requires urgent treatment.
Answer: IgE
Bonus fact: IgE can bind to mast cells and help trigger the release of substances involved in allergic symptoms.
Answer: One
Bonus fact: One embryo splits into two.
Answer: Monozygotic twins
Bonus fact: Monozygotic means originating from one zygote.
Answer: Two
Bonus fact: Each egg is fertilized by a different sperm.