Which of the following would prevent allergic attacks?
A) blocking the attachment of the IgE antibodies to the mast cells
B) blocking the antigenic determinants of the IgM antibodies
C) reducing the number of helper T cells in the body
D) reducing the number of cytotoxic cells
A
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How does probability differ from actuality?
What will be an ideal response?
What can Antarctic ice core samples tell us about atmospheric CO2 levels? Select all that apply
A. Nothingâ€"ice is made of H2O and not CO2. B. CO2 ice core data confirms CO2 measurements taken directly from the atmosphere. C. Ice cores can help scientists estimate atmospheric CO2 levels from centuries ago. D. Ice cores can tell scientists exactly what plants lived on Earth centuries ago.
Which statement describes the expected population growth in the next 50 years?
A) The population growth will be relatively equal throughout the world. B) The greatest population growth is likely to occur in the more industrialized countries, including the United States and Europe. C) Most countries worldwide will achieve zero population growth in the next 10 years. D) The greatest population growth is likely to occur in the least industrialized countries. E) There will be a net decline of population, with the United States and other industrialized countries contributing most to the population decline.
During which phase do daughter nuclei reappear?
metaphase interphase telophase prophase anaphase