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Biology, 21.06.2019 22:00
Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.
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Biology, 22.06.2019 01:20
Look at the photo of the leaf. which term best describes this leaf?
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Biology, 22.06.2019 02:30
Did you know that a blue wales tongue weighs more than an elephant?
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Biology, 22.06.2019 09:10
Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.
Answers: 1
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English, 20.11.2020 22:30
English, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
English, 20.11.2020 22:30
English, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
English, 20.11.2020 22:30