Mathematics

Mathematics, 02.10.2019 04:10, jasminelynn135owmyj1

Ablack bear has a mass of about 135 kg which is the best estimate of the mass of 3 black bears

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Mathematics, 30.08.2019 06:00, payshencec21

Abiologist studied the populations of black bear and brown bears over a 10-year period. the biologist modeled the populations, in thousands, with the following polynomials where x is time, in years.black bears: 2.3x2 – 5.6x + 2.3brown bears: 2.4x2 + 7.2x + 0.97what polynomial models the total number of brown and black bears? a. 4.7x^2 + 1.6x + 3.27 b. 4.7x^2 – 1.6x – 3.37 c. 4.7x^2 + 1.6x – 3.37 d.4.7x^2 – 1.6x + 3.37

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Mathematics, 01.10.2019 00:00, liferoblox666

The white "spirit" black bear, ursys anerucabys kermodei, differs from the ordinary black bear by a single amino acid change in the melanocortin 1 receptor gene. in this population, the gene has two forms (or alleles): the "white: allele b and the "black" allele b. the trait is recessive: white bears have two copies of the while allele of this gene (bb), whereas a bear is black if it has one ore two copies of the black allele (bb or bb). both colors morphs and all three genotypes are found together in the bear population of the northwest coast of british columbia. if processing the white allele has no effect on growth, survival, reproductive success, or mating patterns of individual bears, then the frequency of individuals with 0, 1, or 2 copies of the white allele (b) in the population will follow a binomial distribution. to investigate, hendrick and ritland sampled and genotyped 87 bears from the northwest coast: 42 were bb, 24 were bb, and 21 were bb. assume that this is a random sampled of bears.a. calculate the fraction of b alleles in the population (remember, each bear has two copies of the gene).proportion from the datab. with your estimate of the fraction of b alleles, and assuming a binomial distribution, calculate the expected frequency of bears with 0, 1, and 2 copies.c. compare the observed and expected frequencies in a graph. describe how they differ.

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Biology, 14.10.2019 22:40, tianna08

In europe, three lineages of bears evolved from a common ancestor. two of those lineages led to present-day black bears and brown bears. the third lineage led to cave bears that went extinct 24,000 years ago. which of the following could explain why only one group of bears went extinct? a. individual cave bears must not have been able to adapt to changing conditions as quickly as brown or black bears. b. one group of bears was less highly evolved than the other two groups and was destined to die out. c. some environmental change severely threatened cave bear survival but not the survival of brown or black bears. d. random chance led to the extinction of cave bears and survival of brown and black bears.

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Mathematics, 24.10.2019 07:43, witchhunt666

Abiologist studied the populations of black bear and brown bears over a 10-year period. the biologist modeled the populations, in thousands, with the following polynomials where x is time, in years.black bears: 2.3x2 – 5.6x + 2.3brown bears: 2.4x2 + 7.2x + 0.97what polynomial models the total number of brown and black bears? a. 4.7x^2 + 1.6x + 3.27 b. 4.7x^2 – 1.6x – 3.37 c. 4.7x^2 + 1.6x – 3.37 d.4.7x^2 – 1.6x + 3.37

Answers: 1

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