Biology

Biology, 12.07.2019 07:00, heavenwagner

How many energy levels does lead have

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Biology, 23.07.2019 07:00, horsedoggal1234

Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem? a)there is less available energy in the fourth trophic level because of the loss of energy in the trophic levels of the desert ecosystem. b)there is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have. c)there is less energy available in the producers because their tissues are less dense than those at higher trophic levels. d)there is more energy available in the second trophic level because less energy is needed for hunting compared to the highest trophic levels.

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Chemistry, 27.07.2019 17:50, victoriamscott460

How do the energy differences between the higher energy levels of an atom compare with the energy differences between the lower energy levels of the atom? a. they are greater in magnitude than those between lower energy levels. b. they are smaller in magnitude than those between lower energy levels. c. there is no significant difference in the magnitudes of these differences. d. no answer can be determined from the information given?

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Physics, 05.10.2019 06:00, adejumoayobami1

A)show that whennbecomes very large, the energy levels of the hydrogen atom are getting closer to energy.b)are the rays of these levels also approaching? c)how can this model give an idea of what happens to the energy levels of an atom or molecule near the ionization threshold?

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