(Question)
Answer the following question given this paragraph: Earthquake: What Does Magnitude Mean? at http://www. livescience. com/20538-earthquake-magnitude-video. html (2:00). Q: What is the strength of an earthquake called? Choices: - power - waves - force - magnitude A:
(Answer)
magnitude

(Question)
Answer the following question given this paragraph: During mitosis , when the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell. This is shown in Figure below . You can watch an animation of the process at the following link: http://www. biology. arizona. edu/Cell_bio/tutorials/cell_cycle/MitosisFlash. html . Q: When the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell during this process? Choices: - spawning - cytokinesis - meiosis - mitosis A:
(Answer)
mitosis

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Answer the following question given this paragraph: Sometimes ecological succession occurs in areas where life has already existed. These areas already have soil full of nutrients. Secondary succession is the type of succession that happens after something destroys the habitat, such as a flood or other natural disaster. Abandoning a field that was once used for agriculture can also lead to secondary succession ( Figure below ). In this case, the pioneer species would be the grasses that first appear. Lichen would not be necessary as there is already nutrient-rich soil. Slowly, the field would return to its natural state. Q: What is the type of succession that happens after the destruction of a habitat? Choices: - primary succession - typical succession - tertiary succession - secondary succession A:
(Answer)
secondary succession