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Science and Technology/Engineering > Grade 8 > Life Science
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Science and Technology/Engineering | Grade : 8

Discipline - Life Science

Core Idea - Biological Evolution: Unity and Diversity

[8.LS.4.5] - Synthesize and communicate information about artificial selection, or the ways in which humans have changed the inheritance of desired traits in organisms. Clarification Statement: Emphasis is on the influence of humans on genetic outcomes in artificial selection (such as genetic modification, animal husbandry, and gene therapy).

Resources:

Predecessor Standards:

  • 3.LS.3.1
    Provide evidence, including through the analysis of data, that plants and animals have traits inherited from parents and that variation of these traits exist in a group of similar organisms.Clarification Statements: Examples of inherited traits that vary can include the color of fur, shape of leaves, length of legs, and size of flowers; Focus should be on non-human examples. State Assessment Boundary: Genetic mechanisms of inheritance or prediction of traits are not expected in state assessment.

Successor Standards:

No Successor Standards found.

Same Level Standards:

  • RCA-ST.6-8.1
    Cite specific textual evidence to support analysis of science and technical texts, quoting or paraphrasing as appropriate. (See grades 6-8 Writing Standard 8 for more on quoting and paraphrasing.)
  • WCA.6-8.8
    When conducting research, gather relevant information from multiple print and digital sources, using search terms effectively; assess the credibility and accuracy of each source; and quote or paraphrase the data and conclusions of others while avoiding plagiarism and following a standard format for citation.
  • SLCA.6-8.2
    Analyze the purpose of information presented in diverse media and formats (e.g., visually, quantitatively, orally) and evaluate the motives (e.g., social, commercial, political) behind its presentation.
  • 8.LS.4.4
    Use a model to describe the process of natural selection, in which genetic variations of some traits in a population increase some individuals’ likelihood of surviving and reproducing in a changing environment. Provide evidence that natural selection occurs over many generations. Clarification Statements: The model should include simple probability statements and proportional reasoning. Examples of evidence can include Darwin’s finches, necks of giraffes, and peppered moths. State Assessment Boundary: Specific conditions that lead to natural selection are not expected in state assessment.