Biology, 18.10.2019 19:00 averyiodonnell
Fertilizers have nutrients that plants grow. sometimes, when it rains, fertilizers are washed away from farmland into ponds and lakes. this promotes the growth of algae, a type of plant, present in the water. it is observed that algae grow very fast and cover the surface of the pond completely. they use up all the dissolved oxygen in the pond. how does this affect the other organisms in the pond
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If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?
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Why are some body cells responsive to a particular hormone, whereas others are not? responsive cells have complex signal transduction pathways, whereas cells that do not respond to a particular hormone lack these pathways. responsive cells express a receptor specific for the hormone. all of these choices are correct. responsive cells are located closer to the gland that releases the hormone. whether or not a cell responds to a hormone depends entirely on what type of cell it is (liver cell vs. fat cell vs. nerve cell), because hormones only activate one type of cell.
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