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How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey
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Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than
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Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food
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Biology, 22.06.2019 11:00
If a grape were placed in a hypertonic solution what would happen and why?
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What happens to the energy in the bonds in glucose? the energy is transferred to oxygen. the energy...
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