A positive control is a group in an experiment that receives a treatment with a known result, and therefore should show a particular change during the experiment. It is used to control for unknown variables during the experiment and to give the scientist something to compare with the test group.
Answer:
3D-printed blood vessels incorporating living cells may help take vascular disease out of circulation for good.
Blood clots and fatty plaque residues on vessel walls can hinder or block blood flow and increase pressure in the vascular system. That deprives tissues and organs throughout the body of oxygen and nutrients their cells need to survive. Over time, a patient’s risk increases for cardiac emergencies like heart attack and stroke, as well as for chronic debilitating complications like leg pain, organ failure, tissue death, and gangrene.
Explanation:
Answer:
phosphorylation
Explanation:
it is converted in a condensation reaction in which a phosphate molecule is added.
Answer:
it dose it by pushing sand and moving rock
B.It has a central nucleus composed of 29 protons and 64 neutrons.