Biology, 17.12.2020 01:00 dianactorres
Dmitri picks up a pine cone while walking through the woods and notices that the seeds are exposed, unlike a peach, where the seed is covered with the fruit. A pine tree would be an example of a vascular, nonflowering seed plant. vascular, flowering seed plant. nonvascular seeded plant. nonvascular seedless plant.
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
Biology, 22.06.2019 01:20
Which of the following is not considered an appendage of the skin? nails glands follicles none of the above
Answers: 2
Biology, 22.06.2019 06:30
What is the problem in this article? what solution does the article propose?
Answers: 3
Dmitri picks up a pine cone while walking through the woods and notices that the seeds are exposed,...
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