E. On the inside of the folded chain, away from water.
Is when you breathe in oxygen and exhale carbon dioxide
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.
The "rungs" of the DNA strand are made up of nitrogenous bases.
Endocytosis is taking stuff in while exocytosis is getting rid of the stuff and putting it out
