After millions of years, sedimentary rock containing phosphorus is uplifted from plate tectonic activity. follow the phosphorus molecules found in the rock through the whole phosphorus cycle, by numbering the steps that would follow. 1. step 1 the bear, after a fruitful life, dies from old age. 2. step 2 a fish eats aquatic plants. 3. step 3 weathering and erosion of the rock deposits the phosphorus into water. 4. step 4 soil washes into a lake, where it sinks to the bottom to become sedimentary rock. 5. step 5 aquatic plants absorb and assimilate the dissolved phosphorus. 6. step 6 decomposition of the dead bear releases phosphorus into the soil. 7. step 7 the fish is caught and eaten by a bear.

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.

If a grape were placed in a hypertonic solution what would happen and why?

Are the layers of rock above and below the coal older or younger?