Biology, 28.08.2019 01:00 mileto5824
If you run tests on an organ and find that is is involved in relaying signals and impulses. what organ could it be? a. brain b. lungs c. muscles d. heart
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Biology, 21.06.2019 15:30
Which of the following is not a way in which a vascular plant's xylem and phloem are similar?
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Biology, 21.06.2019 19:00
What do scientists need to look at before developing an argument
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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
Biology, 22.06.2019 00:00
How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?
Answers: 1
If you run tests on an organ and find that is is involved in relaying signals and impulses. what org...
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