Answer:
Why are embryos used in medical research?
Stem cells can be obtained at the early stages of embryo development; these cells are called human embryonic stem cells (hESC). They also could be used in research to develop drugs to treat serious diseases, or to repair organs following a stroke or heart attack.
Answer:
melting from ice cube to water
Explanation:
this is because the object gains heat and melting occurs in the object
Answer:
I choose A, it seems loke the best choice
Explanation: