Q: What contracts to move food throughout the gastrointestinal tract? A:
OPTIONS:
- fluids
- nerves
- vessels
- muscles
muscles
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Q: Double-replacement reactions generally occur between substances in what kind of solution? A:
OPTIONS:
- solid
- reactive
- saline
- aqueous
aqueous
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Q: Dissolved fertilizer can ultimately lead to the creation of what in lakes or coastal oceans, which means a place where nothing can live? A:
OPTIONS:
- extinction zone
- deceased zone
- hydrothermal vent
- dead zone
dead zone
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Q: Lysosomes have what type of enzymes that break down old molecules into parts that can be recycled? A:
OPTIONS:
- corrosive
- bacterial
- probiotics
- digestive
digestive
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