Ventilation systems are needed in a <span>multicellular organism to actually obtain oxygen and give out carbon dioxide. Without this ventilation system, it would be very difficult for multicellular organisms to survive. It has been also observed that surface diffusion is not enough for a multicellular organism to breath.</span>
<span>Psychiatrist is a qualified medical doctor with post postdoctoral degree in Psychiatry. He studies Pharmacology, medicines and has authority to prescribe Antidepressant drugs. Against that Psychologist is qualified to take care of patients psychology. He helps patient by offering extensive psychotherapy and reduces patient's mental and behavioral suffering but psychologist is not authorized to prescribed antidepressant drugs.</span>
Answer:
Difference between fusion reaction and fission reaction.
Explanation:
Fission reaction produce energy while fusion reaction absorb energy.This happens because fission reaction deals with the breakdown of one larger nucleus which result in the generation or liberation of energy.Whereas Fusion reaction combines two smaller atomic nuclei,as a result of which it requires energy for the joining of two smaller atomic nuclei into a larger nucleus.
Answer:
b is the correct answer of your question
