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Biology, 21.06.2019 19:00
(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?
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Biology, 21.06.2019 20:00
If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger
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Biology, 21.06.2019 21:30
List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.
Answers: 3
Biology, 21.06.2019 23:00
The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.
Answers: 3
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
English, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40
Mathematics, 09.07.2021 02:40