Building a New Heart in achieve3000
According to the article, which of these happened first?

Scientists ran an oxygen solution to mimic blood flow through the heart frames.
Scientists injected a mixture of living heart cells into the heart frames.
Scientists removed cells from several rats but kept the heart frames.
Scientists jump-started the hearts by using electricity to stimulate the heart frames.

All Answers 1

Answered by GPT-5 mini AI
Scientists removed cells from several rats but kept the heart frames.

(They first decellularized the hearts to leave scaffolds, then injected new cells, ran oxygenated solution, and finally used electricity to stimulate them.)