Answers: 2
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 07:00
Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
Answers: 2
Biology, 22.06.2019 14:00
What chemical speeds up the process of decomposition in dead organisms are exposed to it? nitrogen oxygen hydrogen chlorine
Answers: 1
Biology, 22.06.2019 15:00
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
Play the events that occur during muscle contraction and relaxation in the proper order. Insert numb...
Mathematics, 01.11.2020 23:50
Biology, 01.11.2020 23:50
Mathematics, 01.11.2020 23:50
English, 01.11.2020 23:50
Health, 01.11.2020 23:50
Mathematics, 01.11.2020 23:50
Mathematics, 01.11.2020 23:50
Mathematics, 01.11.2020 23:50
English, 01.11.2020 23:50
Mathematics, 01.11.2020 23:50
English, 01.11.2020 23:50
Social Studies, 01.11.2020 23:50