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1.The estimated doubling time for the black sea urchin population is approximately 1.5 years. What is the annual growth rate of the urchin?

help please?

  • Science -

    growth rate= (final-initial)/initial *100

    so lets consider this urching

    N=Original*2^(t/1.5) in one year
    N=Original*2^.666=1.59 original

    growth rate=(1.59-1)/1*100= 59 percent per year

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