Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-mammal-study-172c9422a095

What do red blood cells in mammals lack to carry more oxygen?

A nucleus.

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  1. Hemoglobin
  2. A cell membrane
  3. A nucleus ✔

Why: Mammal red blood cells lack a nucleus, making room for more oxygen-carrying hemoglobin.

Huh, didn't know that: Mammal red blood cells lack a nucleus, making room for more oxygen-carrying hemoglobin.

The dad joke
Those cells really lose their heads.
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References

Answer: A nucleus. Mammal red blood cells lack a nucleus, making room for more oxygen-carrying hemoglobin.

  1. Mammal en.wikipedia.org/wiki/Mammal
    The red blood cells of mammals also lack a nucleus to make space for more hemoglobin
    Checked 2026-11-07.

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