Explanation:
that's it. you are on course as shown on the screen
Answer:
Ureteroplasty is surgery to remove the stricture.
Explanation:
Marie and Pierre Curie successfully isolate radioactive radium salts from the mineral pitchblende in their laboratory
Answer:
Without DNA, cells could not reproduce, which would mean the extinction of the species. Normally, the nucleus makes copies of chromosomal DNA, then segments of DNA recombine, and next the chromosomes divide twice, forming four haploid egg or sperm cells.
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