Biology, 14.12.2019 00:31 destinywashere101
The many species of tree frogs that inhabit forests in the eastern us maintain their genetic isolation from other species by several mechanisms, including "singing" slightly different songs. which type of isolating mechanism does this represent?
a. temporal isolationb. behavioral isolationc. ecological isolationd. mechanical isolation
Answers: 1
Biology, 21.06.2019 22:00
Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more
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
The many species of tree frogs that inhabit forests in the eastern us maintain their genetic isolati...
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