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the core sample shown below was collected from a lake bed. every year, one dark layer and one light layer
formed. the dark layer is assumed to have formed during the six cooler months of the year, and the light
layer is assumed to have formed during the six warmer months of the year.
lake sediment core sample
based on only this scale drawing of the core sample, which statement explains the most likely interpretation
about sediment deposition in the lake?
a a large storm increased sediment deposition during year 2 of this sample.
b the rate of sediment deposition in the lake was constant during the five years represented by this sample.
c the rate of sediment deposition in the lake increased during the five years represented by this sample.
d a drought caused more sediment deposition in the lake during year 4 of this sample.

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.

What is the number of phosphates in an atp molecule

Match the types of competition to their descriptions