• 2021-04-14 问题

    Living organisms contain more water _________ substance.

    Living organisms contain more water _________ substance.

  • 2022-06-10 问题

    Evolution can be defined as _____ change that takes place in a(n) _____. A: any; individual B: a genetic; individual C: any; group of organisms D: a genetic; group of organisms

    Evolution can be defined as _____ change that takes place in a(n) _____. A: any; individual B: a genetic; individual C: any; group of organisms D: a genetic; group of organisms

  • 2022-06-03 问题

    What is Chargaff’s ratio? () A: In any organisms, amount of Adenine is the same as Thymine, amount of Cytosine is the same as Guanine. B: In any organisms, amount of Adenine is the same as Cytosine, amount of Thymine is the same as Guanine. C: In any organisms, amount of Adenine is the same as Guanine, amount of Thymine is the same as Cytosine.

    What is Chargaff’s ratio? () A: In any organisms, amount of Adenine is the same as Thymine, amount of Cytosine is the same as Guanine. B: In any organisms, amount of Adenine is the same as Cytosine, amount of Thymine is the same as Guanine. C: In any organisms, amount of Adenine is the same as Guanine, amount of Thymine is the same as Cytosine.

  • 2022-06-14 问题

    Organic evolution includes the concept that ( ). A: humans evolved from gorillas. B: everything evolved from amoebas C: organisms haven D: today E: organisms change over time

    Organic evolution includes the concept that ( ). A: humans evolved from gorillas. B: everything evolved from amoebas C: organisms haven D: today E: organisms change over time

  • 2022-06-10 问题

    Evolution can be defined as _____ change that takes place in a(n) _____. A: any; individual B: a genetic; individual C: any; group of organisms D: a genetic; group of organisms E: All of the answers are correct.

    Evolution can be defined as _____ change that takes place in a(n) _____. A: any; individual B: a genetic; individual C: any; group of organisms D: a genetic; group of organisms E: All of the answers are correct.

  • 2022-06-07 问题

    Scientists have proposed many different evolutionary trees over the years. Evolutionary trees are useful to A: determine that all heterotrophic organisms belong to the kindgom Fungi. B: determine that all phototrophic organisms have derived from kingdom Plantae. C: analyze the type of speciation that occurred between 2 populations. D: evaluate which organisms are closely related.

    Scientists have proposed many different evolutionary trees over the years. Evolutionary trees are useful to A: determine that all heterotrophic organisms belong to the kindgom Fungi. B: determine that all phototrophic organisms have derived from kingdom Plantae. C: analyze the type of speciation that occurred between 2 populations. D: evaluate which organisms are closely related.

  • 2022-05-26 问题

    Theword“they”underlinedinParagraph1refersto______. A: organisms B: fish C: toxins D: flesh

    Theword“they”underlinedinParagraph1refersto______. A: organisms B: fish C: toxins D: flesh

  • 2021-04-14 问题

    Nitrogen and oxygen are ___ important ___ most living organisms cannot survive without these elements.

    Nitrogen and oxygen are ___ important ___ most living organisms cannot survive without these elements.

  • 2022-06-01 问题

    What is meant by the "unused portion of K"? A: the density-dependent growth rate of a population B: the total number of resources available to a population C: the number of organisms still left to populate an environment D: the maximum number of organisms tha an environment can support

    What is meant by the "unused portion of K"? A: the density-dependent growth rate of a population B: the total number of resources available to a population C: the number of organisms still left to populate an environment D: the maximum number of organisms tha an environment can support

  • 2022-06-06 问题

    The amino acid sequence of cytochrome c is used to reveal the organisms that are most closely related. Which of the following organisms are most closely related? A: Species R and S B: Species S and T C: Species T and W D: Species S and W

    The amino acid sequence of cytochrome c is used to reveal the organisms that are most closely related. Which of the following organisms are most closely related? A: Species R and S B: Species S and T C: Species T and W D: Species S and W

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