Biology, 09.12.2019 11:31 heids17043
What is a possible cause for a decrease in ecosystem productivity? . a) an increase in the biodiversity of the ecosystem. b) a decrease of the biodiversity of an ecosystem. c) the biodiversity of an ecosystem experiencing no change . d) an ecosystem becoming more stable .
Answers: 2
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 12:00
This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement
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Biology, 22.06.2019 20:00
Which of the following statements about genes and traits is true? a single trait can be controlled by multiple genes. a single gene can control a single trait. a single trait can alter multiple genes. a single gene can influence multiple traits.
Answers: 3
What is a possible cause for a decrease in ecosystem productivity? . a) an increase in the biodivers...
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