Biology, 26.08.2019 17:30 linnialmira

What are monosaccharides, disaccharides, and polysaccharides and explain their functions?

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Biology, 21.06.2019 21:30, acaciafiedler2003

The asian shore crab (hemigrapsus sanguineus) is an invasive species that has impacted the atlantic coast. predict what characteristic of this invader would most likely disrupt the biodiversity of this area.

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Biology, 21.06.2019 23:00, gthif6088

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.

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Biology, 22.06.2019 02:00, lisxramirez

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

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Biology, 22.06.2019 02:30, ElegantEmerald

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?