Biology, 06.11.2020 02:40 naiomireyes74p2aybs
Which of the following statements correctly describes the response of paramecium to changes in water solute concentrations?
O A. When water solute concentrations rise, the paramecium reduces its rate of contractions.
O B. When water solute concentrations rise, the paramecium increases its rate of contractions.
O C. When water solute concentrations fall, the paramecium reduces its rate of contractions.
O D. The rate of contractions remains constant no matter what the water solute concentration is.
Answers: 3
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The organelle pictured is found in cells of and is theorized to have once been an independent organism.
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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 13:00
Plant species a has a diploid number of 12. plant species b has a diploid number of 16. a new species, c, arises as an allopolyploid from a and b. the diploid number for species c would probably be a) 12. b) 14. c) 16. d) 28. e) 56.
Answers: 1
Which of the following statements correctly describes the response of paramecium to changes in water...
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