Fish maintain water flow over their gills by swimming rapidly with their
mouths open or by tak...
Biology, 20.05.2020 05:02 parmer6527p810bw
Fish maintain water flow over their gills by swimming rapidly with their
mouths open or by taking in water through their mouths.
TRUE
FALSE
Answers: 3
Biology, 22.06.2019 02:20
The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions
Answers: 1
Biology, 22.06.2019 09:30
Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.
Answers: 1
Biology, 22.06.2019 16:00
Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.
Answers: 1
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