Four covalent bonds. carbon-carbon, carbon-hydrogen, carbon-oxygen, and oxygen-hydrogen
The heart/lung machine is necessary
when performing heart transplant surgery because during surgery, the actual
heart is stopped so the heart/lung machine acts as a substitute heart that supplies
oxygen and pumps blood to the body until the actual heart start functioning.
Answer:
sorry if it's a bit messy, hope it helps
I'm at a loss between A & C but I'm not sure, I'd go with A
Answer:
James Watson and Francis Crick solved the structure of DNA. Rosalind Franklin and Maurice Wilkins, also contributed to this discovery.
Explanation:
