Answer the following question given this paragraph: Half-Life Why use a term like half-life rather than lifetime? The answer can be found by examining Figure 31.21, which shows how the number of radioactive nuclei in a sample decreases with time. The time in which half of the original number of nuclei decay is defined as the half-life, t 1 / 2 . Half of the remaining nuclei decay in the next half-life. Further, half of that amount decays in the following half-life. Therefore, the number of radioactive nuclei decreases from. Q: What term means the time in which half of the original number of radioactive nuclei in a sample decay? Choices: - reduced life - quarter-life - partial-life - half-life A:
half-life
(Question)
Answer the following question given this paragraph: Q: The distance between the crests of electromagnetic waves is called what? Choices: - trough - variation - crest - wavelength A:
(Answer)
wavelength
Ques: Answer the following question given this paragraph: The nervous system is made up of nerves. A nerve is a bundle of nerve cells. A nerve cell that carries messages is called a neuron. The messages carried by neurons are called nerve impulses. Q: A nerve cell that carries messages is called a? Choices: - mitochondria - stem cell - platelet - neuron A:
Ans: neuron
(Q).
Answer the following question given this paragraph: CRITICAL THINKING QUESTIONS 19. How are neurons similar to other cells? How are they unique? 20. Multiple sclerosis causes demyelination of axons in the brain and spinal cord. Why is this problematic?. Q: The existence of (virtual) photons is possible only by virtue of the heisenberg uncertainty principle and can travel an unlimited distance, so the range ofthe electromagnetic for is what? Choices: - finite - simple - generated - infinite A:
(A).
infinite
Ques:Answer the following question given this paragraph: Q: The two general functions of roots in plants are to anchor and to do what else? Choices: - generate - photosynthesis - grow - absorb A:

Ans:absorb
Question: Answer the following question given this paragraph: Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by the liver. Healthcare providers give glutathione intravenously to prevent side effects of chemotherapy and to prevent kidney problems. Q: Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by what? Choices: - blood - brain - amino acids - liver A:
Answer:
liver