Mathematics

Mathematics, 04.07.2019 08:00, bethanymorris155

The population of polar bears is currently 900 in the southern beaufort sea. this is a 40% decline from the population in 2001. what was the population of polar bears in the region in 2001?

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Mathematics, 19.08.2019 10:00, andrew6494

Astudy was done to investigate the population of polar bears over time. the correlating linear model is shown below, where x represents the number of years after 1955, and y represents the number of polar bears. interpret the y-intercept. y = 5,000 + 500x a. there were 10,000 polar bears in 1955. b. there were 1,000 polar bears in 1955. c. there were 5,000 polar bears in 1955. d. there were 500 polar bears in 1955.

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Chemistry, 25.09.2019 02:01, carapiasebas

Which statement describes the habitat of polar bears? o o o o polar bears eat meat, so they are carnivores. polar bears are predators because they hunt other anima polar bears live in the arctic, where it is cold and icy. polar bears are active all year and do not hibernate.

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Biology, 10.10.2019 15:30, Olaf2018

Polar bears are capable of swimming over 40 miles in search of food. the population of polar bears is declining due to a shortage of available sea ice which can cause the polar bear to drown because it wasn’t able to reach its food before becoming too exhausted. the population continues to decline. identify which factor of climate change is causing this to happen to the polar bears. a: shifting habitats b: changing migration times c: food shortages d: warming of the ocean

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Biology, 15.10.2019 21:00, khandjia

Astudy published in 2000 sequenced part of the mitochondrial cytochrome b gene from 61 brown bears from two sites in alaska. one population of brown bears lives on the coastal mainland of alaska, while a separate population lives on the abc islands in southeastern alaska. mainland and abc brown bears differ by 11 fixed nucleotide substitutions in the cytochrome b gene. this suggests that the two brown bear populations represent genetically unique clades. the researchers compared the cytochrome b sequences of the two clades of alaskan brown bears to those of 55 polar bears. the analysis showed that polar bears and abc brown bears differ at only three nucleotides in this gene, whereas polar bears and mainland brown bears had more differences. based on the results of the 2000 study, how should the portion of the tree extending from branch point 7 be altered?

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